AutoriCharles Baudouin3Jean Piaget3Walter Schumann2Laurence Rieben1Albert de Muralt1Thomas Legler1Philippe Henarejos1S. Lorie1Alexandre Lestchinski1Jurg Willi1Rene Zazzo1Maria Egg1Hermann Heinzel1Paul Tournier1H. M. Jahns1Frederick H. Pough1Didier Anzieu1I. Benrubi1C. Baudouin1Johan Ulrich Ramseyer1Roger Peterson1Pierre Montet1Henri Michaud1Robert Baden Powell1Pierre bovet1Richard Hillary1Edouard Claparede1Jean Jacques Ducret1Barbel Inhelder1J. Krishnamurti1