Henry Draper Medal. National Academy of Sciences. [24 February 2011]. (原始内容存档于2013-01-26). Past Winners of the Catherine Wolfe Bruce Gold Medal. Astronomical
1126/science.130.3373.432. National Science Foundation - The President's National Medal of Science. [2022-08-08]. (原始内容存档于2012-10-16). J. E. Darnell, L. Levintow