New York, 22 April 1960 - Institutional correspondence A letter from Jan-Albert Goris to Nelson Rockefeller, dated 22 April 1960
New York, 25 April 1960 - Institutional correspondence Jan-Albert Goris's letter to Nelson Rockefeller, dated 25 April 1960
London, 2010 - Exhibition catalogue Installation catalogue The Nature of the Beast, Whitechapel Art Gallery
Whitechapel Gallery, London, April 5, 2009 – April 18, 2010 - Exhibition Installation The Nature of the Beast, Whitechapel Art Gallery