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Abstract

Realised since the 1980’s, the project of the “city rebuilding” presupposes an environmental turn in city reform programmes and policies. & e purpose of this article is to demonstrate, how the agenda of the Country’s City Politics is being inspired by, and assimilates, the ideas of “being together” that have been worked out by city (social) movements. The society has come to be perceived as a source of “innovation”, or as possessing a certain, so far neglected, potential of development. In the governmental agendas, the ideals and claims of the social movements are operationalised” in such a way, as to identify society as a new resource of economic growth. The assimilation of the claims and ideals of the city movements into the governmental agendas becomes part of a new political rationality.

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Authors and Affiliations

Małgorzata Jacyno
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Abstract

This text describes the contemporary teoretical refelection on the place of ethics in historical discourse. It is focused on considering the effect of arguments of ethical tum in humanities on the debate concern with historical representations of Shoah.
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Authors and Affiliations

Jakub Muchowski
ORCID: ORCID
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Abstract

The article is an attempt to analyze the spatio-pedagogical discourse of the German social pedagogy. It represents only a fragment of reflection on the turns in paradigm of place/ space (spatial turn), as pedagogical terms. & e authors seek to answer the question what is the space and place, and what concepts in the field of reflection on the place/space run in the German social pedagogy. The text introduces, inter alia, the relational concept of space developed by Martina Löw, duality of space and the concept of spacing. Active creation of urban space, the spatial dimension of the relationship and its dynamics are subjected to discussion. The article presents critical approach to the notion of transdisciplinary space, and space-oriented social work. Finally, it provides the incentive for in-depth, international analyzes of spatio-pedagogical theories.

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Authors and Affiliations

Jacqueline Puchert
Aleksandra Kurowska-Susdorf
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Abstract

The presence of an open-circuit fault subjects a three-phase induction motor to severely unbalanced voltages that may damage the stator windings consecutively causing total shutdown of systems. Unplanned downtime is very costly. Therefore, fault diagnosis is essential for making a predictive plan for maintenance and saving the required time and cost. This paper presents a model-based diagnosis technique for diagnosing an open-circuit fault in any phase of a three-phase induction motor. The proposed strategy requires only current signals from the faulty machine to compare them with the healthy currents from an induction motor model. Then the errors of comparison are used as an objective function for a genetic algorithm that estimates the parameters of a healthy model, which they employed to identify and localize the fault. The simulation results illustrate the behaviours of basic parameters (stator and rotor resistances, self-inductances, and mutual inductance) and the number of stator winding turn parameters with respect to the location of an open-circuit fault. The results confirm that the number of stator winding turns are the useful parameters and can be utilized as an identifier for an open-circuit fault. The originality of this work is in extracting fault diagnosis features from the variations of the number of stator winding turns.

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Authors and Affiliations

Raya A.K. Aswad
Bassim M.H. Jassim
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Abstract

The following paper presents the players profiling methodology applied to the turn-based computer game in the audience-driven system. The general scope are mobile games where the players compete against each other and are able to tackle challenges presented by the game engine. As the aim of the game producer is to make the gameplay as attractive as possible, the players should be paired in a way that makes their duel the most exciting. This requires the proper player profiling based on their previous games. The paper presents the general structure of the system, the method for extracting information about each duel and storing them in the data vector form and the method for classifying different players through the clustering or predefined category assignment. The obtained results show the applied method is suitable for the simulated data of the gameplay model and clustering of players may be used to effectively group them and pair for the duels.
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Authors and Affiliations

Piotr Bilski
1
ORCID: ORCID
Izabella Antoniuk
2
ORCID: ORCID
Rafał Łabędzki
3

  1. Warsaw University of Technology, Poland
  2. Warsaw University of Life Sciences, Poland
  3. SGH Warsaw School of Economics, Poland
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Abstract

This article presents the problem of understanding Heideggerian ‘turn’ (Kehre) in the context of the most important aspects of his later philosophy. Since Heidegger had written (secretly) Contributions to Philosophy, he departed from his original philosophical assumptions, which had been presented in Being and Time. Heidegger’s turn was conceived as a discovery of truth of Being, as a project of another beginning, as proper asking about Being as such, as well as a discovery of a hidden aspect of being that is revealed in an event (‘enowning’).

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Authors and Affiliations

Jacek Surzyn
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Abstract

Business ethics – together with other branches of applied ethics – faces a challenge of the validity of its claims. These ethical claims must be convincing for participants of economic life and meet the requirement of impartiality. Of course, philosophical ethics helps in this search. Among many ethical propositions, the emphasis is on those that have sufficient epistemological grounding (often taking the form of a meta-ethical recommendations). Considering this condition, the choice of ethical tools is significantly reduced. For this reason, the search for ethical standards applicable in social practice is continued in the sphere of culture. Meanwhile, this widening of the research field must be done with caution. It is hard to find in culture an answer to the question about the criteria for ethical behavior. Culture, of course, is founded on such criteria. However, there are more of them than would be expected by an ethicist seeking – in this area – a solution to the problem of the validity of an ethical norm. The fact that complicates this search is that the changes that have been taking place in Western culture since the mid-twentieth century are very powerful. Their multi-faceted nature means that their systematization (carried out using the principle of non-contradiction) is not possible. The hypothesis regarding the complexity and heterogeneity of normative beliefs held by Western societies is confirmed (among others) by the analysis of processes initiated by the performative turn. Hence the choice of arguments offered by performance studies. They harmonize with the leading intention of this research paper. They explain why the world of cultural values – despite the multitude of practices of giving them significance – legitimately aspires to be the normative foundation of collective life, including economic life.

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Authors and Affiliations

Przemysław Rotengruber
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Abstract

Production waste is one of the major sources of aluminium for recycling. Depending on the waste sources, it can be directly melted in furnaces, pre-cleaned and then melted, or due to the small size of the material (powder or dust) left without remelting. The latter form of waste includes chips formed during mechanical cutting (sawing) of aluminium and its alloys. In this study, this type of chips (with the dimensions not exceeding 1 mm) were melted. The obtained results of laboratory tests have indicated that even chips of such small sizes pressed into cylindrical compacts can be remelted. The high recovery yield (up to 94 %) and degree of metal coalescence (up to 100 %) were achieved via thermal removal of impurities under controlled conditions of a gas atmosphere (argon or/and air), followed with consolidation of chips at a pressure of minimum 170 MPa and melting at 750 oC with NaCl-KCl-Na3AlF6 salt flux.

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Authors and Affiliations

P. Palimąka
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Abstract

The purpose of this scientific paper is to follow the influence of thermal galvanizing, as a technological process on the quality of the galvanized surface. The galvanizing technology used and studied involves at the end of the process, the removal of excess zinc from the surface by centrifugation. The zinc layer will be lower than that of simple immersion galvanizing. The measurements were performed following the roughness of the machined surface on a five-Section specimen – each Section being processed with a different cutting regime. The results were analyzed after each operation. The first measurements were made after the turning operation, followed by measurements made after pickling and fluxing and then after thermal galvanizing. Based on the results obtained, the aim was to set up a range of best roughness at which the galvanized part should have a commercial appearance and be made with a cost-effective cutting regime in terms of costs.
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Authors and Affiliations

Sandor Ravai-Nagy
1
ORCID: ORCID
Alina Bianca Pop
1
ORCID: ORCID
Marcin Nabiałek
2
ORCID: ORCID
Costin Alexandru
3
ORCID: ORCID
Mihail Aurel Țîțu
4
ORCID: ORCID

  1. Technical University of Cluj-Napoca, Northern Un iversity Cent re of Baia Mare, Faculty of Engineering – Department of Engineering and Technology Management , 62A, Vict or Babes Street, 430083, Baia Mare, Maramures, Romania
  2. Częstochowa University of Technology, Department of Physics , Armii Krajowej 19 Av., 42-200 Częstochowa
  3. Electro Sistem, 4B, 8 Martie Street, 430406, Baia Mare, Maramures, Romania
  4. ”Lucian Blaga” University of Sibiu, Faculty of Engineering, Industrial Engineering and Management Department , 10 Victoriei Street, 550024, Sibiu, Romania
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Abstract

Remarkable contemporary Lebanese artist Akram Zaatari reveals a complicated post-war situation of multicultural society of the Middle East in the context of the Ottoman Empire. He compares his conceptual artistic practice to the work of the archaeologist on excavations. Being the artist-as-archivist, he recalls the European humanism in the heroic version of existentialism.
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Authors and Affiliations

Zofia Chojnacka
1
ORCID: ORCID

  1. Instytut Sztuki PAN
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Abstract

This work attempts to use nitrogen gas as a shielding gas at the cutting zone, as well as for cooling purposes while machining stainless steel 304 (SS304) grade by Computer Numerical Control (CNC) lathe. The major influencing parameters of speed, feed and depth of cut were selected for experimentation with three levels each. Totally 27 experiments were conducted for dry cutting and N2 gaseous conditions. The major influencing parameters are optimized using Taguchi and Firefly Algorithm (FA). The improvement in obtaining better surface roughness and Material Removal Rate (MRR) is significant and the confirmation results revealed that the deviation of the experimental results from the empirical model is found to be within 5%. A significant improvement of reduction of the specific cutting energy by 2.57 % on average was achieved due to the reduction of friction at the cutting zone by nitrogen gas in CNC turning of SS 304 alloy.

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Authors and Affiliations

P. Prasanth
1
T. Sekar
2
M. Sivapragash
3

  1. Department of Mechanical Engineering, Tagore Institute of Engineering and Technology, Deviyakurichi, Salem – 636112, Tamilnadu, India
  2. Department of Mechanical Engineering, Government College of Technology, Coimbatore – 641013, Tamilnadu, India
  3. Department of Mechanical Engineering, Universal College of Engineering and Technology, Vallioor, Tirunelveli – 627117, Tamilnadu, India
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Abstract

The current passed by the stator coil of the permanent magnet synchronous motor (PMSM) provides rotating magnetic field, and the number of turns will directly affect the performance of PMSM. In order to analyze its influence on the PMSM performance, a 3 kW, 1500 r/min PMSM is taken as an example, and the 2D transient electromagnetic field model is established. The correctness of the model is verified by comparing the experimental data and calculated data. Firstly, the finite element method (FEM) is used to calculate the electromagnetic field of the PMSM. The performance parameters of the PMSM are obtained. On this basis, the influence of the number of turns on PMSM performance is quantitatively analyzed, including current, no-load back electromotive force (EMF), overload capacity and torque. In addition, the influence of the number of turns on eddy current loss is further studied, and its variation rule is obtained, and the variation mechanism of eddy current loss is revealed. Finally, the temperature field of the PMSM is analyzed by the coupling method of electromagnetic field and temperature field, and the temperature rise law of PMSM is obtained. The analysis of this paper provides reference and practical value for the optimization design of PMSM.

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Authors and Affiliations

H. Qiu
Y. Zhang
C. Yang
R. Yi
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Abstract

The dynamic development of science requires constant improvement of approaches to modeling physical processes and phenomena. Practically all scientific problems can be described by systems of differential equations. Many scientific problems are described by systems of differential equations of a special class, which belong to the group of so-called singularly perturbed differential equations. Mathematical models of processes described by such differential equations contain a small parameter near the highest derivatives, and it was the presence of this small factor that led to the creation of a large mathematical theory. The work proposes a developed algorithm for constructing uniform asymptotics of solutions to systems of singularly perturbed differential equations.
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Authors and Affiliations

Valentyn Sobchuk
1
ORCID: ORCID
Iryna Zelenska
1
ORCID: ORCID
Oleksandr Laptiev
1
ORCID: ORCID

  1. Taras Shevchenko National University of Kyiv, Ukraine
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Abstract

In the extensive polemic with the book Haunting History: For a Deconstructive Approach to the Past by Ethan Kleinberg, the reviewer comments on the innovative potential of deconstruction as it enables the conception of various scenarios of the future. Kleinberg’s reflections on the ontology (or hauntology) of the past are located within the current discussion about “the ontological turn.” The reviewer compares Kleinberg’s take on a deconstructive approach to the past with similar considerations presented by Sande Cohen in the US as well as by Keith Jenkins, Alun Munslow and, more recently, Berber Bevernage in Europe.

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Authors and Affiliations

Ewa Domańska
ORCID: ORCID
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Abstract

This paper presents a study on the dry turning of polyoxymethylene copolymer POM-C. The effect of five factors (cutting speed, feed rate, depth of cut, nose radius, and main cutting edge angle) on machinability is evaluated using four output parameters: surface roughness, tangential force, cutting power, and material removal rate. To do so, the study relies on three approaches: (i) Pareto statistical analysis, (ii) multiple linear regression modeling, and (iii) optimization using the genetic algorithm. To conduct the investigation, mathematical models are developed using response surface methodology based on the Taguchi L16 orthogonal array. The results indicate that feed rate, nose radius, and cutting edge angle significantly influence surface quality, while depth of cut, feed, and speed have a notable impact on other machinability parameters. The developed mathematical models have determination coefficients greater than or very close to 95%, making them very useful for the industry as they allow predicting response values based on the chosen cutting parameters. Finally, the optimization using the genetic algorithm proves to be promising and effective in determining the optimal cutting parameters to maximize productivity while improving surface quality.
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Authors and Affiliations

Tallal Hakmi
ORCID: ORCID
Amine Hamdi
ORCID: ORCID
Youssef Touggui
ORCID: ORCID
Aissa Laouissi
ORCID: ORCID
Salim Belhadi
ORCID: ORCID
Mohamed Athmane Yallese
ORCID: ORCID
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Abstract

This article discusses some proposals aimed at creating a new discipline named polonistyka (Polish studies), an umbrella term which would encompass those research (sub)divisions that fall outside the traditional academic taxonomy. The article identifies three cultural turns whose shockwave effect have significantly changed the face of the humanities. They are the transition from the analogue to the digital; an impasse in the interdisciplinary and transdisciplinary studies; and the continual fragmentation of research interests. The new discipline, as envisaged by the article, would reintegrate and provide institutional recognition to all kinds of studies, projects and probes. It would also create a framework for some kind of academic certification of research interests that are in dispute. To achieve these goals it would be necessary to redefine the subject matter, the scope as well as the functioning of the new discipline. That, in turn, implies a reformatting of the legacy model of teaching and study to fit in with the new discipline. The transition is absolutely necessary, not least because of the real danger of marginalization and pauperization of the profession (i.e. teachers and specialists in the field of ‘Polish philology’).
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Authors and Affiliations

Ryszard Nycz
1
ORCID: ORCID

  1. Uniwersytet Jagielloński
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Abstract

In the paper I present the famous argument between Peter F. Strawson and Bertrand Russell on definite descriptions. I do not go into details of the two rival solutions to the problem of definite descriptions. Instead I present the controversy against the background of two traditions within analytic philosophy, i.e. the philosophy of natural language (Strawson) and the philosophy of ideal language (Russell). In consequence, the aim of this paper is to sketch the principal features of the two traditions and to indicate their influence on the argument. In the first paragraph I discuss Russell’s theory of descriptions and present it as a result of dramatic changes that he had made in his philosophy before he finally presented them in On Denoting in 1905. The second paragraph deals with the two traditions within analytic philosophy after the linguistic turn and underlines the role of Strawson in the philosophy of natural language. In the third paragraph I analyze in detail Strawson’s arguments against the theory of descriptions and I focus on some details that are usually omitted in standard presentations. The fourth paragraph discusses Russell’s response to Strawson’s objections, i.e. the counter-arguments formulated from the standpoint of philosophy of ideal language. I end with some suggestions about how to reconcile both approaches.

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Authors and Affiliations

Janusz Maciaszek
ORCID: ORCID
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Abstract

The popularity of high-efficiency permanent magnet synchronous motors in drive systems has continued to grow in recent years. Therefore, also the detection of their faults is becoming a very important issue. The most common fault of this type of motor is the stator winding fault. Due to the destructive character of this failure, it is necessary to use fault diagnostic methods that facilitate damage detection in its early stages. This paper presents the effectiveness of spectral and bispectrum analysis application for the detection of stator winding faults in permanent magnet synchronous motors. The analyzed diagnostic signals are stator phase current, stator phase current envelope, and stator phase current space vector module. The proposed solution is experimentally verified during various motor operating conditions. The object of the experimental verification was a 2.5 kW permanent magnet synchronous motor, the construction of which was specially prepared to facilitate inter-turn short circuits modelling. The application of bispectrum analysis discussed so far in the literature has been limited to vibration signals and detecting mechanical damages. There are no papers in the field of motor diagnostic dealing with the bispectrum analysis for stator winding fault detection, especially based on stator phase current signal.
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Authors and Affiliations

Przemysław Pietrzak
1
ORCID: ORCID
Marcin Wolkiewicz
1
ORCID: ORCID

  1. Wrocław University of Science and Technology, Department of Electrical Machines, Drives and Measurements, Wybrzeze Wyspia ˙ nskiego 27, ´ 50-370 Wrocław, Poland
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Abstract

In the current paper, the effect of tool wear for a constant period of time (360 s) during conventional and ultrasonic assisted machining of Inconel 718 is investigated in terms of cutting forces, temperature, and deviation measurements. For fixed process parameters turning experiments have been performed with and without the application of tangential vibration. Ultrasonic assisted turning (UAT) experiments have been compared with conventional turning (CT). The experimental results reveal that cutting forces and temperature increase linearly in the case of UAT whereas remaining constant in CT for a constant period of time. Besides the tool wear rate in the case of UAT is more than that in the CT.
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Authors and Affiliations

Srihari Dodla
1
ORCID: ORCID

  1. Department of Mechanical Engineering, Indian Institute of Technology (BHU), Varanasi-221005, India
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Abstract

Ludowa historia Polski. Historia wyzysku i oporu. Mitologia panowania (A People's History of Poland. A history of exploitation and resistance. The mythology of reign) (2020) by Adam Leszc-zyński, met with great interest, both in the academic community and wider reading circles. Re-viewed many times, it was the subject of discussion in scientific periodicals, opinion‑forming press, and on the Internet. In this article, based on published and shared online reviews, debates, discus-sions, etc., I will consider the reasons for the social resonance of the book. I will look at how it was received by members of the Academy (primarily historians and sociologists). Was Did the “new” approach to folk history proposed by Leszczyński meet with their acceptance? How did they evaluate the manner and degree of achievement of the goals set by the author? I will also be interested in assessments of methodological competences, scientific workshop technique and opi-nions on the benefits that science (mainly the humanities) has gained thanks to the author's findings.
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Authors and Affiliations

Jolanta Kolbuszewska
1
ORCID: ORCID

  1. Instytut Historii UŁ
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Abstract

This article analyses the first traces of postsecular turn in historical theory, arguing that they first emerged in Dominick LaCapra’s book History and Its Limits: Human, Animal, Violence (2009) and in Allan Megill’s subsequent polemic with that work. The author claims that what prevails in LaCapra’s narrative is the rhetoric of “resisting apocalypse”, thus demonstrating how he inscribes postsecular themes with the issue of trauma, together with its religious connotations. The discussion between LaCapra and Megill is treated here as a point of departure for considering the forms that the postsecular can take in historical theory.

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Authors and Affiliations

Tomasz Wiśniewski
ORCID: ORCID
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Abstract

This article presents a critical interpretation of Barbara Klicka’s Zdrój [ The Spa] (2019) within the framework of the Spatial Turn. The analysis examines the relationship between the subject and the medical spaces with the help of concepts like heterotopia, atopia, psychotopography as well as the author’s own concept of topopathography. The aim is to explore the impact of the designated sanatorium space on the patient’s identity.
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Authors and Affiliations

Wiktoria Kulak
1
ORCID: ORCID

  1. Wydział Polonistyki UJ
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Abstract

This article examines Bolesław Prus's use of futurology and utopia in his short story Phantoms (Widziadła). A closer look at the story's images and their sequence not only gives us an insight into the author's philosophy of history but also reveals a utopian vision which can hardly be squared with the realism of his previous work. Thus ‘Widziadła’, written in 1911, can be seen as an important piece of evidence of a change in the writer's beliefs and worldview. It was at that late stage of his life that Prus, a hard-nosed realist and critic of the Romantics, turned into an impassioned idealist who, disillusioned with the world around him, sought refuge in literature. It was to be, however, a fiction like ‘Widziadła’, looking beyond the conventions of realism, unashamedly eclectic and visionary.

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Authors and Affiliations

Kamil Barski
ORCID: ORCID
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Bibliography


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Authors and Affiliations

Gabriela Matuszek-Stec
1
ORCID: ORCID

  1. Uniwersytet Jagielloński, Kraków

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