Gamow, George (1970). My World Line: An Informal Autobiography. New York: The Viking Press. p. 137.
D. Darling. "Urca process". The Internet Encyclopedia of Science. Retrieved 2 March 2010. http://www.daviddarling.info/encyclopedia/U/Urca_process.html
D. K. Nadyozhin (1995). "Gamow and the physics and evolution of stars". Space Science Reviews. 74 (3–4): 455–461. Bibcode:1995SSRv...74..455N. doi:10.1007/BF00751432. S2CID 122987210. /wiki/Space_Science_Reviews
M. Brueggen; A. Kercek (10 January 2000). "The convective URCA process in white dwarfs". Max Planck Institute. Archived from the original on 12 January 2010. Retrieved 5 February 2010. https://web.archive.org/web/20100112000659/http://www.mpa-garching.mpg.de/HIGHLIGHT/2000/highlight0001_e.html
P. Haensel (1995). "Urca processes in dense matter and neutron star cooling". Space Science Reviews. 74 (3–4): 427–436. Bibcode:1995SSRv...74..427H. doi:10.1007/BF00751429. S2CID 115313950. /wiki/Space_Science_Reviews