@misc{Bułhak_Jan_(1876–1950)._Photographer_Benedykt, author={Bułhak, Jan (1876–1950). Photographer}, copyright={Public Domain}, howpublished={online}, title={Benedykt Dybowski - portrait}, type={Image}, URL={http://rcin.org.pl/Content/69080/WA058_87880_%20ABDyb-20-6_portp.pdf}, keywords={Dybowski, Benedykt (1833-1930), zoologists, explorers, biologists - Poland - biography, naturalists - biography}, }