TY - JOUR A1 - Freud, Sigmund T1 - Massenpsychologie und Ich-Analyse – Group-Psychology and the Analysis of the Ego T2 - The Complete Psychological Work of Sigmund Freud, Vol. 18, London (The Hogarth Press) 1966. Y1 - 1921 UR - https://opus4.kobv.de/opus4-Fromm/frontdoor/index/index/docId/9557 ER -