title: Reflections: 40 years of JCL. Introduction.
authors.forename: Heike
authors.initials: H
authors.lastname: Behrens
mesh_terms: D002648:Child; D002663:Child Language; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D010506:Periodicals as Topic / Q000266:history