Slg. Wilhelm Otto Nachf. : Werkräume von Kai Althoff bis Thomas Zipp = Work spaces from Kai Althoff to Thomas ZippOtto, WilhelmGoldmann, RenateWolfson, MichaelLeopold-Hoesch-Museum der Stadt DürenPapiermuseum (Düren, Germany)GermanEnglishBook2013Bönen : Kettler, c2013.Otto, Wilhelm—Art collections—ExhibitionsArt, Modern—21st century—Private collections—Germany—ExhibitionsBook9783862062355