@misc{Cayley_Arthur_(1821–1895)_Note_1891, author={Cayley, Arthur (1821–1895)}, volume={4}, copyright={Public Domain}, address={Cambridge}, journal={Mathematical papers}, howpublished={online}, year={1891}, publisher={University Press}, language={eng}, title={Note on cones of the third order}, type={Text}, URL={http://rcin.org.pl/Content/125142/PDF/WA35_152789_12807-4_Note-on-cones.pdf}, }