@misc{Sylvester_James_Joseph_(1814–1897)_Note_1908,
 author={Sylvester, James Joseph (1814–1897)},
 copyright={Public Domain},
 address={Cambridge},
 howpublished={online},
 year={1908},
 publisher={Cambridge University Press},
 language={eng},
 type={Text},
 title={Note on a direct method of obtaining the expansion of the sine or cosine of multiple arcs in terms of powers of the sines or cosines of the simple arc by means of De Moivre's Theorem},
 URL={http://www.rcin.org.pl/Content/115339/PDF/WA35_139789_11371-2_Art51.pdf},
}