*Space.com: First asteroid trio discovered*IAUC 7588, reporting discovery of S/2001 (87) 1*IAUC 7590, confirming the discovery*IAUC 8582, reporting discovery of S/2004 (87) 1 and naming Romulus and Remus*An animation of (87) Sylvia and its moons (on Vimeo)*Shape model derived from lightcurve (on page 19)*Instability zones for satellites of asteroids.
* Space.com: First asteroid trio discovered* IAUC 7588, reporting discovery of S/2001 (87) 1* IAUC 7590, confirming the discovery* IAUC 8582, reporting discovery of S/2004 (87) 1 and naming Romulus and Remus* An animation of (87) Sylvia and its moons (on Vimeo)* Shape model derived from lightcurve (on page 19)* Instability zones for satellites of asteroids.