ベルリン芸術アカデミー
From 1961 to 1993 member of the Academy of Arts, Berlin (West), Section literature. From 1986 to 1990 corresponding member of the Academy of Arts, Berlin (East), Department of Literature and Language Maintenance. From 1990 to 1993 Ordinary Member of the Academy of Arts, Berlin (East), Section Literature and Language Maintenance. Since 1993 member of the Academy of Arts in Berlin, Literature section. Member of PEN, the German Academy for Language and Literature, Darmstadt, the Free Academy of the Arts, Hamburg, and the German Academy of Performing Arts, Frankfurt am Main. Honorary doctorates from the University of Stockholm, the Friedrich Schiller University of Jena and the University of Hamburg.