@misc{Hamilton_William_Rowan_(1805–1865)_Quaternion_1967,
 author={Hamilton, William Rowan (1805–1865)},
 volume={3},
 copyright={Public Domain},
 address={Cambridge},
 journal={Cunningham Memoir},
 howpublished={online},
 year={1967},
 publisher={University Press},
 language={eng},
 language={eng},
 type={Text},
 title={Quaternion Proof of a Theorem of Reciprocity of Curves in Space (1862)},
 URL={http://rcin.org.pl/Content/190089/PDF/WA35_223315_11536-3_art-39.pdf},
}