1962-08-31 Construction for an Acute Plane Construction for an Acute Plane, 2007 pencil on paper, snaplock bar, 76 x 200 cm Construction for an Acute Plane, 1993 pencil on paper, 29.7 x 42 cm shown in: “New Sundays”, Galerie du Jour agnès b., Paris, France (2008) “Robert Estermann. Manor Kunstpreis Luzern 2007”, Museum of Art Lucerne, Switzerland (solo show) Art Cologne, with Elisabeth Kaufmann Gallery, Cologne, Germany (2003) “PARA…SIGNS”, Elisabeth Kaufmann, Zurich, Switzerland (2003) Fiac, with Galerie du Jour agnès b., Paris, France (2002) “Robert Estermann”, Galerie du Jour agnès b., Paris, France (2002, solo show) Bibliography: Kunstmuseum Luzern, “Robert Estermann, Pleasure, Habeas Corpus, Motoricity. The Great Western Possible”, exhibition catalogue, Edition Fink, ISBN 978-3-03746-105-1, 2007, Zürich (monographical) “tout est important – Hans-Ulrich Obrist parle avec Robert Estermann very yellow plane – mercredi 4 septembre 2002”, édition galerie du jour agnès b., 2002, Paris, CD audio, 40′ Gallery of Contemporary Art, “11th Biennial of Visual Arts VALUES”, exhibition catalogue, ISSN 1451-804X, 2004, Pancevo 2004, pp. 102-103 see also: Two Boys, 1995–2007 left: Me holding a 3d version of Construction for an Acute Plane, 1993 right: Inner cover of “Robert Estermann, Pleasure, Habeas Corpus, Motoricity. The Great Western Possible”, note the fine parallel graphic lines across the photograph; their angle is the same as that of the line indicating the base (plane) in Construction for an Acute Plane.