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Untitled, from: Graphic Portfolio University of St. Gallen 1963-66 | Ohne Titel: Grafikmappe Hochschule St. Gallen 1963-66, 1967
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Blue Moon, 1970
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Wheel and Stripes, 1970
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Target and Crag, 1972
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Composition III, from The Elementary Memory | La mémoire élémentaire, 1976
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Composition XI, from The Elementary Memory | La mémoire élémentaire, 1976