D. Buchwald

The collected papers of Albert Einstein

Albert Einstein, David E. Rowe, Robert Schulmann, 1987 .

The Berlin Years: Correspondence, May-December 1920, and Supplementary Correspondence, 1909-1920

J. V. Dongen, A. Kox, D. Kennefick, 2006 .

The Invisible Century: Einstein, Freud, and the Search for Hidden Universes [Book Review]

D. Buchwald, 2004 .

The collected papers of Albert Einstein. - Vol. 13: The Berlin Years: Writings and Correspondence, January 1922 - March 1923

A. Kox, D. Kennefick, O. Moses, 2012 .