@misc{_Bohdan, editor={Kowalska, Krystyna (1915–1994). Collector}, copyright={Public Domain}, howpublished={online}, title={Bohdan Dyakowski - portrait}, type={Image}, URL={http://rcin.org.pl/miiz/Content/82116/WA058_90781_Dyakowski_P1016.pdf}, keywords={Dyakowski, Bohdan (1864-1940), biologists - Poland - biography, textbooks authors, promoters of science, environmental activists}, }