@misc{Czapik_Tomasz_2020, author={Czapik, Tomasz}, copyright={Creative Commons Attribution BY-SA 4.0 license}, howpublished={online}, year={2020}, language={pol}, type={Text}, URL={http://www.rcin.org.pl/Content/193389/PDF/POZN271_229492_doktorat-czapik.pdf}, }