@misc{Hamilton_William_Rowan_(1805–1865)_Two_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={Two Letters to Professor Phillips on the construction of object glasses. (1843-4)},
 URL={http://www.rcin.org.pl/Content/129632/PDF/WA35_158722_11536-1_Art21.pdf},
}