Max Beckmann, Barbara Copeland Buenger (1997). “Self-Portrait in Words: Collected Writings and Statements, 1903-1950”, p.183, University of Chicago Press
"'Portlandia' Duo Fred Armisen and Carrie Brownstein Discuss the Secrets to the Cult Show's Success". Interview with Marlow Stern, www.thedailybeast.com. February 27, 2014.