Butler, Karen K., "Frederick Hartt and American Abstraction in the 1950s: Building the Collection at Washington University in St. Louis. St. Louis," 2012
Butler, Karen K. "Frederick Hartt and American Abstraction in the 1950s: Building the Collection at Washington University in St. Louis." In American Abstraction in the 1950s: Building the Collection at Washington University in St. Louis, edited by Jane E. Neidhardt, 24-29. St. Louis: Mildred Lane Kemper Art Museum, Washington University in St. Louis, 2012.