org. [2007年6月12日]. (原始内容存档于2015年7月11日). (英文)Caltech Astrophysicist PeterGoldreich Wins $1 Million International Shaw Prize. California Institute of Technology
explained if Titan has a floating, isostatically-compensated ice shell Goldreich, Peter M.; Mitchell, Jonathan L. Elastic ice shells of synchronous moons: