@misc{Cayley_Arthur_(1821–1895)_On_1896, author={Cayley Arthur (1821–1895)}, volume={9}, copyright={Domena Publiczna}, address={Cambridge}, journal={The collected mathematical papers of Arthur Cayley}, howpublished={online}, year={1896}, publisher={Cambridge University Press}, language={eng}, type={Tekst}, title={On the group of points G^1_4 on a sextic curve with five double points}, URL={http://rcin.org.pl./Content/121779/PDF/WA35_151799_12807-9_613.pdf}, }