@misc{Hamilton_William_Rowan_(1805–1865)_On_1931,
 author={Hamilton, William Rowan (1805–1865)},
 copyright={Public Domain},
 journal={Cunningham Memoir},
 address={Cambridge},
 howpublished={online},
 year={1931},
 publisher={University Press},
 language={eng},
 type={Text},
 title={On the Focal Lengths and Aberrations of a thin Lens of Uniaxal Crystal, bounded by Surfaces which are of Revolution about its axis. (1841)},
 URL={http://rcin.org.pl./Content/129606/PDF/WA35_158640_11536-1_Art14.pdf},
}