Ryan, W. H.; Ryan, E. V.; Martinez, C. T. (November 2004). "Unusual Lightcurves in the Vesta Family of Asteroids". American Astronomical Society. 36: 1181. Bibcode:2004DPS....36.4609R.
Ryan, William; Ryan, E. V. (October 2007). "Physical Characterization of the Vesta Family Asteroids". American Astronomical Society. 39: 439. Bibcode:2007DPS....39.1604R.