Jacobson, R. A.; Owen, W. M., Jr. (2004). “The orbits of the inner Neptunian satellites from Voyager, Earthbased, and Hubble Space Telescope observations”. Astronomical Journal128 (3): 1412–1417. Bibcode: 2004AJ....128.1412J. doi:10.1086/423037.
Dumas, Christophe; Smith, Bradford A.; Terrile, Richard J. (2003). “Hubble Space Telescope NICMOS Multiband Photometry of Proteus and Puck”. The Astronomical Journal126 (2): 1080–1085. Bibcode: 2003AJ....126.1080D. doi:10.1086/375909.
Jacobson, R. A.; Owen, W. M., Jr. (2004). “The orbits of the inner Neptunian satellites from Voyager, Earthbased, and Hubble Space Telescope observations”. Astronomical Journal128 (3): 1412–1417. Bibcode: 2004AJ....128.1412J. doi:10.1086/423037.
Dumas, Christophe; Smith, Bradford A.; Terrile, Richard J. (2003). “Hubble Space Telescope NICMOS Multiband Photometry of Proteus and Puck”. The Astronomical Journal126 (2): 1080–1085. Bibcode: 2003AJ....126.1080D. doi:10.1086/375909.