[An unknown in the dictionary. Sexual science researcher Iwan Bloch--100th anniversary of his birth and 50th anniversary of his death].
D005858:Germany; D049672:History, 19th Century; D049673:History, 20th Century; D012725:Sexual Behavior / Q000266:history
Ein Unbekannter im Lexikon. Der Sexualforscher Iwan Bloch--Zum 100. Geburts- und 50. Todestag.