Between 1947 and 1949 he held a chair at Heidelberg and from 1949 to the time of his death he was Professor für vergleichende Sprachwissenschaft und Slavistik and Leiter des indologischen und slavischen Seminars in the University of Tübingen.
Ndërmjet viteve 1947 dhe 1949 ai mbajti një karrige në Heidelberg dhe nga 1949 në kohën e vdekjes së tij ai ishtevergleichende Profesor für Sprachwissenschaft und SlavistikdheLeiter des indologischen Seminare und slavischen në University of Tübingen.