@misc{Ritter_von_Frauenfeld_Georg_(1807–1873)_Beitrag_[1862?], author={Ritter von Frauenfeld, Georg (1807–1873)}, copyright={Public Domain}, address={[unknown]}, journal={Publications of famous biologists - a collection of prints}, howpublished={online}, year={[1862?]}, publisher={[unknown]}, language={ger}, title={Beitrag zur Insektengeschichte aus dem Jahre 1861}, type={Text}, URL={http://www.rcin.org.pl/Content/69433/PDF/265.pdf}, keywords={History of insects, Flies (Lipara similis Schin), Perennial grasses (Phragmites communis Trin.)}, }