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References
- ↑ John Noble Wilford (1982-06-10). "Data Shows 2 Rings Circling Neptune". Archives, The New York Times (June 10, 1982). Retrieved 2007-06-28.
- ↑ Guinan, E. F.; Harris, C. C.; Maloney, F. P. (1982). "Evidence for a Ring System on Neptune" (PDF). Abstracts, Astronomy ADS. 14: 658. Bibcode:1982BAAS...14..658G . Retrieved 2007-06-28.
- ↑ Faye Flam. "Hunt is on for another planet Earth". The Philadelphia Inquirer (June 6, 2009). Retrieved 7 July 2009.[ dead link ]
- ↑ "Faculty in the News". E-Newsletter, Villanova University (March 2008). Retrieved 7 July 2009.
- ↑ "AAS Fellows". AAS. Retrieved 28 September 2020.
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