@misc{Loew_Hermann_(1807–1879)_Die_1857, author={Loew, Hermann (1807–1879)}, copyright={Public Domain}, address={Wien}, journal={Publications of famous biologists - a collection of prints}, howpublished={online}, year={1857}, publisher={[unknown]}, language={pol}, title={Die europäischen Arten der Gattung Cheilosia}, type={Text}, URL={http://www.rcin.org.pl/Content/83016/PDF/639.pdf}, keywords={Insects, Hoverfly, Cheilosia, Cheilosia - species differentiation, Cheilosia - insect characterization method, Cheilosia - Europe}, }