"'Morrissey's hair, bongs made of apples, MTV's 120 Minutes': Inside this month's hottest new books". Interview with Teddy Wayne, www.salon.com. May 20, 2015.
"Artists on Art - from the 14th - 20th centuries". Book edited by Robert Goldwater and Marco Treves; Pantheon Books, London, p. 410, 'Notes d'un Peintre' (Notes of a Painter), 1972.
Ludwig Wittgenstein, G. E. M. Anscombe, Linda L. McAlister, Margarete Schättle (2007). “Remarks on Colour/Bemerkungen Uber Die Farben”, Univ of California Press