Since 1977 he was a corresponding member of the Göttingen Academy of Sciences and since 1981 of the Austrian Academy of Sciences.
sˈɪns nˈaɪntiːnhˈʌndɹɪd sˈɛvənti sˈɛvən hiː wʌzɐ kˌɔːɹɪspˈɑːndɪŋ mˈɛmbɚɹ ʌvðə ɡˈɜːtɪndʒən ɐkˈædəmi ʌv sˈaɪənsᵻz ænd sˈɪns nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi wˈʌn ʌvðɪ ˈɔːstɹiən ɐkˈædəmi ʌv sˈaɪənsᵻz.