Ueda, Y.; Miyamoto, M.; Mikouchi, T.; Hiroi, T. (March 2003). Surface Material Analysis of the S-type Asteroids: Removing the Space Weathering Effect from Reflectance Spectrum. 34th Annual Lunar and Planetary Science Conference. p. 2078. Bibcode:2003LPI....34.2078U.
Migliorini, F.; et al. (1997). "(7) Iris: a possible source of ordinary chondrites?". Astronomy & Astrophysics. 321: 652. Bibcode:1997A&A...321..652M.