"Artists on Art - from the 14th - 20th centuries". Book edited by Robert Goldwater and Marco Treves; Pantheon Books, London, p. 412, 'Notes d'un Peintre' (Notes of a Painter), 1972.
"The Christian Science Monitor", quoted in the review of "The Drawings of Henri Matisse" exhibit at Manhattan's Museum of Modern Art by Theodore F. Wolff, March 25, 1985.