1. Zory Jr., P.S.: Quantum Well Lasers. Academic Press, San Diego (1993)
2. Kressel, H., Butler, J.K.: Semiconductor Lasers and Heterostructure LED’s. Academic Press, New York (1977)
3. Karu, T.I.: Photobiology of Low-Power Laser Therapy. Harwood Academic, London (1989)
4. Dumitraş, D.: Biophotonics. All Educational, Bucharest (1999)
5. Pokora, L.J.: Semiconductor Lasers in Selected Medical Applications. In: Proc. SPIE, vol. 2203, pp. 31–54 (1995)