2
Brabant, E., Falzeder, E., Giampieri-Deutsch, P., Haynal, A., Meyer-Palmedo, I., Hoffer, P. T. & Haynal, A. (1993) The Correspondence of Sigmund Freud and Sándor Ferenczi Volume 1, 1908-1914. The Correspondence of Sigmund Freud and Sándor Ferenczi, Volume 1, 1908-1914 25:1-571