Czernin, Hubertus: ‘Der wundersame Weg der Eugenie Graff’. Der Standard, 27.02.1998, p. 34.
Der Standard
Davis, Gerald H.: ‘National Red Cross Societies and Prisoners of War in Russia, 1914–18’. Journal of Contemporary History, vol. 28, no. 1, Jan. 1993, p. 31–52.
Journal of Contemporary History
Davis, John H.: The Guggenheims: An American Epic. New York, 1978.
The Guggenheims: An American Epic
De Cola, Felix: ‘The Elegant Art: Playing the Piano with the Left Hand Alone’. Clavier, vol. 6, no. 3, Mar. 1967.
Clavier
Del Mar, Norman: Richard Strauss: A Critical Commentary on his Life and Works (3 vols). London, 1978.
Richard Strauss: A Critical Commentary on his Life and Works
Deneke, Margaret: ‘Memoirs’ (unpublished typescript, 1962–64, 2 vols), Lady Margaret Hall, Oxford.
Deneke, Margaret: ‘Mr. Paul Wittgenstein. Devotion to Music’. Obituary, The Times, 14.03.1961.
The Times,
Deneke, Margaret: Ernest Walker. Oxford, 1951.
Ernest Walker.
Duchen, Jessica: Erich Woflgang Korngold. London, 1996.
Erich Woflgang Korngold
Edel, Theodore: Piano Musicfor the Left Hand. Bloomington, 1994.
Piano Musicfor the Left Hand.
Edmonds, David, and Eidinow, John: Wittgenstein’s Poker. London, 2001.