Ernst A. Busche, Roy Lichtenstein: Das Frühwerk 1942-1960, Berlin, 1988, no. 215, pp. 60, 315–316 (illustrated, p. 60) Roy Lichtenstein Foundation, Roy Lichtenstein: A Catalogue Raisonné, October 2023–ongoing, no. RLCR 304 (RL 4688), online (illustrated)