Dubuffet, Jean, 1901-1985 -- Friends and associates -- Exhibitions. : Angels, demons and savages : Pollock, Ossorio, Dubuffet / Klaus Ottmann, Dorothy Kosinski ; introductions by Dorothy Kosinski and Terrie Sultan ; with essays by Klaus Ottmann and Alicia G. Longwell ; a text by Jean Dubuffet ; and contributions by Elizabeth Steele, Sylvia Albro, Scott Homolka, and Chantal Bernicky