TY - JOUR A1 - Ackerman, N. W. T1 - Summerhill: For and Against T2 - H. H. Hart (Ed.), Summerhill: For and Against, New York (Hart Publishing Company) 1970, pp. 224-249. Y1 - 1970 UR - https://opus4.kobv.de/opus4-Fromm/frontdoor/index/index/docId/3565 ER -