1. R.V. Ambartzumian. Letokhov in “Chemical and Biochemical Applications of Lasers”, Vol. 3, Ed. C.B. Moore, Acad. Press, New York 1977.
2. N. Bloembergen, E. Yablonivitch, Physics Today 31 (1978) 23
3. C.D. Cantrell, S.M. Freund, J.L. Lyman in “Laser Handbook”, Vol. 3, Ed. M.L. Stitch, North-Holland, Amsterdam 1979.
4. P.A. Schulz, A.S. Sudbc, D.J. Krajnovich, H.S. Kwok, Y.R. Shen, Y.T. Lee, Ann. Rev. Phys. Chem. 30 379 (1979).
5. J.L. Lyman, G.P. Quigley, 0.P. Judd in. Judd in “Multiple Photon Excitation and Dissociation of Polyatomic Molecules” ed. C. Cantrell, Springer, Heidelberg 1980, and LA-UR 79–2605 (Report of the Los Alamos Scientific Lab. 1979 ).