fɹʌm nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi sˈɪks hiː wˈɜːkt təɡˌɛðɚ wɪððə ɹˈaɪx ˈɪnstɪtˌuːt fɚðə hˈɪstɚɹi ʌvðə nˈuː dʒˈɜːməni, ænd wʌzɐ mˈɛmbɚɹ ʌv ɪts ɐdvˈaɪzɚɹi bˈoːɹd ɔnðə "dʒˈuːɪʃ kwˈɛstʃən ɹᵻsˈɜːtʃ dᵻpˈɑːɹtmənt.
From 1936 he worked together with the Reich Institute for the History of the New Germany, and was a member of its advisory board on the "Jewish Question Research Department.