@misc{Rudio_Ferdinand_(1856–1929)_Leonard_1884, author={Rudio, Ferdinand (1856–1929)}, copyright={Public Domain}, address={Basel}, howpublished={online}, year={1884}, publisher={Benno Schwabe}, language={ger}, language={ger}, type={Text}, title={Leonard Euler : Vortrag gehalten auf dem Rathhause in Zürich am 6. december 1883}, URL={http://rcin.org.pl/Content/11760/PDF/WA35_3527_5535_Leonard.pdf}, keywords={Euler, Leonhard (1707-1783). [KABA]}, }