The Gates
Exhibited : Pretoria Art Museum, Pretoria, Katzen Collection, April 1968.
Pretoria Art Museum, Pretoria, Alexis Preller Retrospective, 24 October to 26 November 1972.
Literature : Pretoria Art Museum (1972) Alexis Preller Retrospective, exhibition catalogue, Pretoria: PAM, illustrated in colour on page 5, catalogue no 73.
Esmé Berman (1983) Art & Artists of South Africa, Cape Town: AA Balkema, illustrated in black and white on page 10.
Esmé Berman and Karel Nel (2009) Collected Images (vol. 2), Johannesburg: Shelf Publishing, a work from the same series, belonging to Nelson Mandela Metropolitan Museum, is illustrated in colour on pages 183 and 218.