Jacobson, R. A. (1992). «The masses of Uranus and its major satellites from Voyager tracking data and Earth based Uranian satellite data». The Astronomical Journal. 103 (6): 2068–78. Bibcode:1992AJ....103.2068J. doi:10.1086/116211.
Hanel, R.; Conrath, B.; Flasar, F. M.; Kunde, V.; Maguire, W.; Pearl, J.; Pirraglia, J.; Samuelson, R.; Cruikshank, D. (1986). «Infrared Observations of the Uranian System». Science. 233 (4759): 70. Bibcode:1986Sci...233...70H. PMID17812891. doi:10.1126/science.233.4759.70.CS1-vedlikehold: vis-forfattere (link)
Jacobson, R. A. (1992). «The masses of Uranus and its major satellites from Voyager tracking data and Earth based Uranian satellite data». The Astronomical Journal. 103 (6): 2068–78. Bibcode:1992AJ....103.2068J. doi:10.1086/116211.
Hanel, R.; Conrath, B.; Flasar, F. M.; Kunde, V.; Maguire, W.; Pearl, J.; Pirraglia, J.; Samuelson, R.; Cruikshank, D. (1986). «Infrared Observations of the Uranian System». Science. 233 (4759): 70. Bibcode:1986Sci...233...70H. PMID17812891. doi:10.1126/science.233.4759.70.CS1-vedlikehold: vis-forfattere (link)