@misc{Sylvester_James_Joseph_(1814–1897)_Sur_1912,
 author={Sylvester, James Joseph (1814–1897)},
 copyright={Public Domain},
 address={Cambridge},
 howpublished={online},
 year={1912},
 publisher={Cambridge University Press},
 language={eng},
 type={Text},
 title={Sur la solution d'une classe très étendue d'équations en quaternions},
 URL={http://www.rcin.org.pl/Content/121753/PDF/WA35_145264_11371-4_Art20.pdf},
}