Fehr, M., Wurmfeld, S., & Adler, T. L. (2004). Seeing red: On nonobjective painting and color theory (Engl. ed.). Salon-Verl..

Fehr, MIchael, Sanford Wurmfeld, and Tracy L. Adler. Seeing Red: On Nonobjective Painting and Color Theory. Engl. ed. Cologne: Salon-Verl., 2004.

Fehr, MIchael, et al. Seeing Red: On Nonobjective Painting and Color Theory. Engl. ed. Salon-Verl., 2004.