1. J. Dessauer, H. Clark (eds.): Xerography and Related Processes (Focal, New York 1965)
2. R. M. Schaffert: Electrophotography (Focal, New York 1980)
3. M. Scharfe: Electrophotography Principles and Optimization (Research Studies Press., Letchworth, England 1984)
4. E. M. Williams: The Physics and Technology of Xerographic Processes (Wiley, New York 1984)
5. H. Keiss: RCA Rev. 40, 59 (1978)