‘SILENT SPRING’: ECOLOGICAL SYSTEMS AND ACTIVISM IN THE SCULPTURAL ARTS SINCE THE 1960S. FOUR CASE STUDIES: HANS HAACKE, PIERRE HUYGHE, ANNE DUK HEE JORDAN, DIANA LELONEK. zsmu. 2025;18(1):197-216. Accessed August 1, 2026. https://www.zsmu.org/index.php/zsmu/article/view/54