Hillier, John; Squyres, Steven W. (August 1991). "Thermal stress tectonics on the satellites of Saturn and Uranus". Journal of Geophysical Research. 96 (E1): 15, 665–15, 674. Bibcode:1991JGR....9615665H. doi:10.1029/91JE01401.
Bell, J. F. III; McCord, T. B. (1991). A search for spectral units on the Uranian satellites using color ratio images. Lunar and Planetary Science Conference, 21st, Mar. 12–16, 1990 (Conference Proceedings). Houston, TX, United States: Lunar and Planetary Sciences Institute. pp. 473–489. Bibcode:1991LPSC...21..473B.
Helfenstein, P.; Hillier, J.; Weitz, C.; Veverka, J. (March 1990). "Oberon: Color Photometry and its Geological Implications". Abstracts of the Lunar and Planetary Science Conference. 21. Lunar and Planetary Sciences Institute, Houston: 489–490. Bibcode:1990LPI....21..489H.
Croft, S. K. (1989). New geological maps of Uranian satellites Titania, Oberon, Umbriel and Miranda. Proceeding of Lunar and Planetary Sciences. Vol. 20. Lunar and Planetary Sciences Institute, Houston. p. 205C. Bibcode:1989LPI....20..205C.
Strobell, M. E.; Masursky, H. (March 1987). "New Features Named on the Moon and Uranian Satellites". Abstracts of the Lunar and Planetary Science Conference. 18: 964–965. Bibcode:1987LPI....18..964S.
Hillier, John; Squyres, Steven W. (August 1991). "Thermal stress tectonics on the satellites of Saturn and Uranus". Journal of Geophysical Research. 96 (E1): 15, 665–15, 674. Bibcode:1991JGR....9615665H. doi:10.1029/91JE01401.