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(i)D. L. Rabinowitz, K. M. Barkume, M. E. Brown, H. G. Roe, M. Schwartz, S. W. Tourtellotte, C. A. Trujillo (2006). “Photometric Observations Constraining the Size, Shape, and Albedo of 2003 EL61, a Rapidly Rotating, Pluto-Sized Object in the Kuiper Belt”. The Astrophysical Journal639 (2): 1238?1251. doi:10.1086/499575. (ii)“Jet Propulsion Laboratory Small-Body Database Browser: 136108 Haumea”. NASA's Jet Propulsion Laboratory (2008-05-10 last obs). 2008年11月13日閲覧。 (unless otherwise cited)
JH Waite, et al. (2006). “Cassini Ion and Neutral Mass Spectrometer: Enceladus Plume Composition and Structure”. Science311 (5766): 1419-1422. doi:10.1126/science.1121290. PMID16527970. Retrieved on 2008-11-17.