The Collected Papers of Albert Einstein: The Berlin Years : Correspondence, May-December 1920, Supplementary Correspondence, 1090-1920 (10) (COLLECTED PAPERS OF ALBERT EINSTEIN, 10)
Einstein, Albert/Buchwald, Diana Kormos/Sauer, Tilman/Rosenkranz, Ze'Ev/Illy, Jozsef/Holmes, Virgina Iris