Agnes Martin : [exhibition, Tate modern, London, 3 June - 11 October 2015, Kunstsammlung Nordrhein-Westfalen, Düsseldorf, 7 November - 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] / [organized by Tate modern] ; edited by Frances Morris and Tiffany Bell ; with contributions by Marion Ackermann, Rachel Barker, Jacquelynn Baas, ... [et el.]

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