@ARTICLE{Witko_M._Adam_2016, author={Witko, M.}, number={No 4}, journal={Nauka}, howpublished={online}, year={2016}, publisher={Biuro Upowszechniania i Promocji Nauki PAN}, title={Adam BielaƄski (1912 - 2016)}, URL={http://ochroma.man.poznan.pl/Content/92590/mainfile.pdf}, }