Robert Williams

发表

Jan Peters, George Sonneborn, Robert P. Kirshner, 1993 .

Massimo Stiavelli, Norbert Zacharias, Stefano Casertano, 2000 .

M. F. Bode, Matthew A. Greenhouse, D. K. Lynch, 2004 .

Edward B. Jenkins, Michigan State University, Jack A. Baldwin, 2002, astro-ph/0210551.

Henry C. Ferguson, Mark Dickinson, Robert Williams, 2000 .