Max Born (ed.), The Born-Einstein Letters: Correspondence between Albert Einstein and Max and Hedwig Born from 1916 to 1955 (London, 1971), 113-14.
982
Fritz Stern, Dreams and Delusions: The Drama of German History (New York, 1987), 51–76 (‘Fritz Haber: The Scientist in Powerand in Exile’); Margit Szöllösi-Janze, Fritz Haber 1868–1934: Eine Biographie (Munich, 1998), 643-91.