1. W. Kaiser and M. Maier, in: F.T. Arichi and E.O. Schultz-Dubois (eds.), Laser Handbook, vol. 2 (North-Holland, Amsterdam, 1972), p. 1077;
2. Raman lasers (review)
3. A. Laubereau, in: W. Kiefer and D.A. Long (eds.), Non-linear Raman Spectroscopy and Its Chemical Applications (Reidel, Dordrecht, The Netherlands, 1982), p. 183;
4. F.P. Milanovich, in: M.J. Weber (ed.), Handbook of Laser Science and Technology, vol. III, Optical Materials (CRC Press, Boca Raton, FL, 1987), p. 283;
5. A.A. Kaminskii, Crystalline Lasers: Physical Processes and Operating Schemes (CRC Press, Boca Raton, FL, 1996);