A.N. Matveev, "Optics", Mir Publishers, Moscow 1988. Section 7, "Photometric concepts and quantities."
Born and Wolf, "Principles of Optics", Pergammon Press, 1980. Section 4.8.1, "Basic concepts of photometry."
Miller and Friedman, "Photonics Rules of Thumb", McGraw Hill, 1996. p. 297-321.
Sliney and Wolbarsht, "Safety with Lasers and Other Optical Sources: A Comprehensive Handbook", Plenum Press, 1980. Chapter 4, "Effects of optical radiation on the eye."
"Optical-Thermal Response of Laser-Irradiated Tissue, Section 2.2.2. Optical Parameters," p. 20-26, eds. A.J. Welch and M.J.C. van Gemert, Plenum Press, New York, 1995.
CS Barbanel, AM Ducatman, MJ Garston, F Fuller, "Laser hazards in research laboratories," J Occup Med 35:369-374, 1993.
