@article{Pestalozzi, author = {Pestalozzi, Hans A.}, title = {Strategien zur Ver{\"a}nderung der Gesellschaft. Vortrag am 24. M{\"a}rz 1990 an der Universit{\"a}t von Heidelberg beir der Jahrestagung der Internationalen Erich-Fromm-Gesellschaft anl{\"a}sslich des 90. Geburtstags von Erich Fromm, 4 pp.}, number = {unpublished version / unver{\"o}ffentlichte Fassung}, language = {de} } @article{Pestalozzi, author = {Pestalozzi, Hans A.}, title = {Strategies of Social Change. Presentation on 24 March 1990 at the University of Heidelberg, being a contribution to the annual congress of the International Erich Fromm Society held in commemoration of Erich Fromm's 90th birthday on the topic of >Humanism}, number = {unpublished version / unver{\"o}ffentlichte Fassung}, language = {en} }