@misc{Hamilton_William_Rowan_(1805–1865)_On_1967,
 author={Hamilton, William Rowan (1805–1865)},
 volume={3},
 copyright={Public Domain},
 journal={Cunningham Memoir},
 address={Cambridge},
 howpublished={online},
 year={1967},
 publisher={University Press},
 language={eng},
 language={eng},
 type={Text},
 title={On Quaternions applied to Problems respecting the construction of a Circle touching three given Circles on a Sphere, and of a Sphere touching four given Spheres (1848)},
 URL={http://rcin.org.pl/Content/190048/PDF/WA35_223300_11536-3_art-24.pdf},
}