Recent Works by Barbara Hepworth (exhibition catalogue), Gimpel Fils, London, 1956, no. 11, illustration of version 1; 'New Work in a New Material,' Yorkshire Evening Post, 3rd December 1956, illustration of version 1 (titled as Forms in Movement-Pavan); Exhibition on the Occasion of the Conferment of the Honorary Freedom of the Borough of St Ives on Bernard Leach and Barbara Hepworth (exhibition catalogue), Public Library, St. Ives, 1968, illustration of version 1; Josef Paul Hodin, Barbara Hepworth, Neuchâtel & London, 1961, no. 210, illustrated p. 169 (version 1 illustrated, pl. 210); Matthew Gale & Chris Stephens, Barbara Hepworth, Works in the Tate Gallery Collection and the Barbara Hepworth Museum St Ives, London, 1999, colour illustration of another version p. 154; Barbara Hepworth (exhibition catalogue), Institut Valencià d'Art Moderne, Valencia, 2004, colour illustration of version 1 pp. 170-171; Sophie Bowness (ed.), Barbara Hepworth, The Plasters, The Gift to Wakefield, Farnham, 2011, illlustrated in colour pp. 110-111 (version 1 illustrated p. 111, fig. 12)