1. A.E. Siegman: An Introduction to Lasers and Masers (McGraw-Hill, New York 1971);
2. A.E. Siegman: Lasers (Oxford Univ. Press, Oxford 1986)
3. I. Hecht: The Laser Guidebook, 2nd edn. (McGraw-Hill, New York 1992)
4. Lasers, Vols. 1–4, ed. by A. Levine (Dekker, New York 1966–76)
5. A. Yariv: Quantum Electrons (Wiley, New York 1975);