@misc{Bourmeister-Radoszkowski_Oktawiusz_Wincenty_de_(1820–1895)_Sur_[ok., author={Bourmeister-Radoszkowski, Oktawiusz Wincenty de (1820–1895)}, copyright={Public Domain}, address={[S. Petersburg]}, journal={Publications of famous biologists - a collection of prints}, howpublished={online}, year={[ok. 1887]}, publisher={[unknown]}, language={fre}, title={Sur quelques Osmia russes}, type={Text}, URL={http://rcin.org.pl/Content/114700/PDF/s894a.pdf}, keywords={Insects - Osmia - Russian species - a museum in London, Insects - Osmia}, }