La troisième révolution, 1969

WWW DNB GNB, 25-5-2016 (Stern, Karl; Lebensdaten: 1906-1975; Land: Deutschland (XA-DE); Kanada (XD-CA); Dt. Psychiater und Psychoanalytiker, Emigration 1936 nach Großbritannien, 1940 nach Kanada) http://d-nb.info/gnd/1019462655

WWW Wikipedia [versión inglesa], 25-5-2016 (Karl Stern (April 8, 1906 - November 11, 1975) was a German-Canadian neurologist and psychiatrist, and a Jewish convert to the Catholic Church. Stern is best known for his account of his conversion in Pillar of Fire (1951)) https://en.wikipedia.org/wiki/Karl_Stern#Books