1. A. M. Shalagin, “Light-induced drift,” in Physics Encyclopedia [in Russian], Vol. 4, A. M. Prokhorov (ed.), Bol’shaya Rosiiskaya Éntsiklopediya, Moscow (1994), p. 468.
2. F. Kh. Gel’mukhanov and A. M. Shalagin, JETP Lett. 29, 711 (1979).
3. G. Nienhuis, Phys. Rep. 138, 151 (1986).
4. H. G. C. Werij and J. P. Woerdman, Phys. Rep. 169, 145 (1988).
5. S. G. Rautian and A. M. Shalagin, Kinetic Problems of Nonlinear Spectroscopy, North-Holland, Amsterdam (1991).