Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kirchhoff, H. Le 22ème Congrès de la Société allemande de psychologie Heidelberg, septembre/octobre 1959. Int Rev Educ 6, 221–223 (1960). https://doi.org/10.1007/BF01416690
Issue Date:
DOI: https://doi.org/10.1007/BF01416690