Title: Hommage an das Quadrat
Subjects: Square in art, Exhibitions, Art collections, Modern Art, Themes, motives, Museum Ritter (Waldenbuch, Germany), Art, Sammlung Marli Hoppe-Ritter (Museum Ritter), Private collections
People: Marli Hoppe-Ritter (1948-)
Time periods: 20th century, 21st century