@misc{Wurmser1999, author = {L. Wurmser}, title = {Vorwort,}, booktitle = {R. J. Kaus, Psychoanalyse und Sozialpsychologie. Sigmund und Erich Fromm, Heidelberg (Universit{\"a}tsverlag C. Winter ) 1999, pp. 9-20.}, type = {foreword}, year = {1999}, }