@ARTICLE{Czaja_J._Determination_2013,
 author={Czaja, J. and Śliwa, R. and Bernaczek, J.},
 number={No 3 September},
 journal={Archives of Metallurgy and Materials},
 howpublished={online},
 year={2013},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 title={Determination of Stress Values Based on Calculation of Photoelastic Constants on the Example of the Sub-Frame Connection with the Hull in a Small Training Aircraft},
 URL={http://journals.pan.pl/Content/87620/PDF/10172%20Volume%2058%20Issue%203-12%20paper.pdf.pdf},
 doi={10.2478/amm-2013-0062},
}