Baer, James J.; Chesley, S. R. (July 2007), "Astrometric Masses of 21 Asteroids, and an Integrated Asteroid Ephemeris", American Astronomical Society, DDA meeting #38, Bibcode:2007DDA....38.0903B, 9.03.
Sitarski, G.; Todorovic-Juchniewicz, B. (April 1992), "Determination of the Mass of (1) Ceres from Perturbations on (203) Pompeja and (348) May", Acta Astronomica, 42: 139–144, Bibcode:1992AcA....42..139S.
Sauppe, Jason; et al. (December 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory - March/April 2007", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 34 (4): 119–122, Bibcode:2007MPBu...34..119S.