@misc{Cayley_Arthur_(1821–1895)_Numbers,_1896,
 author={Cayley, Arthur (1821–1895)},
 volume={11},
 copyright={Public Domain},
 journal={Mathematical papers},
 address={Cambridge},
 howpublished={online},
 year={1896},
 publisher={Cambridge University Press},
 language={eng},
 language={eng},
 type={Text},
 title={Numbers, theory of},
 URL={http://www.rcin.org.pl/Content/153018/PDF/WA35_181668_12807-11_art-90.pdf},
}