@ARTICLE{Loga_Małgorzata_Dependence_2018, author={Loga, Małgorzata and Jeliński, Michał and Niina Kotamäki}, volume={vol. 44}, number={No 2}, journal={Archives of Environmental Protection}, howpublished={online}, year={2018}, publisher={Polish Academy of Sciences}, title={Dependence of water quality assessmenton water sampling frequency – an example of Greater Poland rivers}, URL={http://journals.pan.pl/Content/104127/PDF/Archives%20vol%2044%20no%202%20a4_internet_1.pdf}, doi={10.24425/119688}, keywords={water quality, sampling frequency, river monitoring}, }