Samuel Bak . Protokolle einer Passion Gabriel Laub 1978 Braunschweig, p. 35, ill.
BAK . Denkmäler unserer Träume Rolf Kallenbach 1977 München, p. 126, ill. 38.
BAK paintings of the last decade Paul T. Nagano, A. Kaufman 1976 New York, NY, p. 46, ill.