@misc{Hamilton_William_Rowan_(1805–1865)_Supplement_1931,
 author={Hamilton, William Rowan (1805–1865)},
 copyright={Public Domain},
 address={Cambridge},
 journal={Cunningham Memoir},
 howpublished={online},
 year={1931},
 publisher={University Press},
 language={eng},
 title={Supplement to an Essay on the Theory of Systems of Rays. (1830)},
 type={Text},
 URL={http://rcin.org.pl/Content/129588/PDF/WA35_158612_11536-1_Art3.pdf},
}