public collections
The Allen Memorial Art Museum, Oberlin College, Oberlin
Australian National Gallery, Canberry
Collection Count Giuseppe Panza di Biumo, Milan
Fer Collection, Ulm
Galleria Nazionale d’Arte Moderna, Rome
Kunstmuseum des Kantons Thurgau, Ittingen
Haus Lange, Krefeld
Hirshhorn Museum and Sculpture Garden, Washington D.C.
The Ludwig Collection
Musée National d’Art Moderne, Centre Pompidou, Paris
The Museum of Modern Art, New York
Museum of Contemporary Art, Sydney
Museum van Hedendaagse Kunst, Ghent
The National Gallery of Canada, Ottawa
National Gallery of Victoria, Melbourne
The Tate Gallery, London
The Solomon R. Guggenheim Museum, New York
Staatsgalerie, Stuttgart
The Stedelijk Museum, Amsterdam
The Whitney Museum of American Art, New York
Van Abbemuseum, Eindhoven