M PetzoldtJoseph Dan, Born 1935, studied at the Hebrew University, 1964 Ph.D; since 1982 Gershom Scholem Professor for Kabbala; 1993-2002 Guest Professor for Jewish Studies at the Freie Universitat Berlin, since 2002 Professor emeritus.Klaus Herrmann, Born 195; 1990 Ph.D.; 1993-94 Humboldt research fellow in Jerusalem; since 1994 Akademischer Rat at the Freie Universitat Berlin. Read More Read Less