title: [Heinrich Düker's action theory].
authors.forename: L
authors.initials: L
authors.lastname: Tent
mesh_terms: D005860:Germany, West; D049673:History, 20th Century; D006801:Humans; D009042:Motivation; D011582:Psychological Theory; D011589:Psychology, Experimental / Q000266:history
vernacular_title: Heinrich Dükers Handlungstheorie.