Smith, Toby. "Tidal heating tutorial". Archived from the original on 2013-10-16. Retrieved 2014-04-16. https://web.archive.org/web/20131016110939/http://www.astro.washington.edu/users/smith/Astro150/Tutorials/TidalHeat/
"Underground Magma Ocean Could Explain Io's Misplaced Volcanoes - SpaceRef".[permanent dead link] http://spaceref.com/jupiter/underground-magma-ocean-could-explain-ios-misplaced-volcanoes.html
Tyler, R. W. Henning C. Hamilton. 2015. TIDAL HEATING IN A MAGMA OCEAN WITHIN JUPITER'S MOON Io. The Astrophysical Journal Supplement Series
Tyler, Robert H.; Henning, Wade G.; Hamilton, Christopher W. (2015). "TIDAL HEATING IN A MAGMA OCEAN WITHIN JUPITER's MOON Io". The Astrophysical Journal Supplement Series. 218 (2): 22. Bibcode:2015ApJS..218...22T. doi:10.1088/0067-0049/218/2/22. hdl:11603/28862. https://doi.org/10.1088%2F0067-0049%2F218%2F2%2F22
"Magma Oceans on Jupiter's Moon Io May Solve Volcano Mystery". Space.com. 14 September 2015. http://www.space.com/30530-jupiter-moon-io-magma-volcano-mystery.html
"Cassini Finds Global Ocean in Saturn's Moon Enceladus - Astrobiology". 15 September 2015. http://astrobiology.com/2015/09/cassini-finds-global-ocean-in-saturns-moon-enceladus.html