Sori, Michael M.;Bapst, Jonathan;Bramson, Ali M.;Byrne, Shane;Landis, Margaret E.«A Wunda-full world? Carbon dioxide ice deposits on Umbriel and other Uranian moons».Icarus,290,01-07-2017,p.1–13. Bibcode: 2017Icar..290....1S. DOI: 10.1016/j.icarus.2017.02.029.
Sori, Michael M.;Bapst, Jonathan;Bramson, Ali M.;Byrne, Shane;Landis, Margaret E.«A Wunda-full world? Carbon dioxide ice deposits on Umbriel and other Uranian moons».Icarus,290,01-07-2017,p.1–13. Bibcode: 2017Icar..290....1S. DOI: 10.1016/j.icarus.2017.02.029.