@misc{Cayley_Arthur_(1821–1895)_On_1891,
 author={Cayley, Arthur (1821–1895)},
 volume={4},
 copyright={Domena Publiczna},
 address={Cambridge},
 journal={Mathematical papers},
 howpublished={online},
 year={1891},
 publisher={University Press},
 language={eng},
 type={Tekst},
 title={On the cubic centres of a line with respect to three lines and a line},
 URL={http://www.rcin.org.pl/Content/125150/PDF/WA35_154728_12807-4_On-the-cubic.pdf},
}