Agnes Martin
: [on the occasion of the Exhibition Agnes Martin, Tate Modern, London, 3 June - 11 October 2015, Kunstsammlung Nordrhein-Westfalen, Düsseldorf, 7 November 2015 - 6 March 2016, Los Angeles County Museum of Art, Los Angeles, 24 April - 11 September 2016, Solomon R. Guggenheim Museum, New York, 7 October 2016 - 11 January 2017]