edited by Christos M. Joachimides and Norman Rosenthal ; essays by Brooks Adams ... [and others] ; co-ordinating editors, Gerti Fietzek and Henry Meyric Hughes
edited by Museum moderner Kunst Stiftung Ludwig Wien, Eva Badura-Triska ; texts, Eva Badura-Triska, Brigitte Borchardt-Birbaumer, Rosemarie Brucher, Bernadette Reinhold ; preface, Karola Kraus