@misc{Cayley_Arthur_(1821–1895)_Illustrations_1897, author={Cayley, Arthur (1821–1895)}, volume={13}, copyright={Public Domain}, address={Cambridge}, journal={Mathematical papers}, howpublished={online}, year={1897}, publisher={Cambridge University Press}, language={eng}, title={Illustrations of Sylow's theorems on groups}, type={Text}, URL={http://www.rcin.org.pl/Content/149070/PDF/WA35_181632_12807-13_Art957.pdf}, }