1. W. Demtreder, Laser Spectroscopy (Springer, New York, 2003, 448 pp.).
2. P. G. Pappas, M. M. Burns, D. D. Hinshewood, et al., “Saturation Spectroscopy with Laser Optical Pumping in Atomic Barium,” Phys. Rev. A 21 (6), 1955–1968 (1980).
3. V. S. Smirnov, A. M. Tumaikin, and V. I. Yudin, “Stationary Coherent States of Atoms in Resonance Interaction with Elliptically Polarized Light. Coherent Trapping of Populations (General Theory),” Zh. Eksp. Teor. Fiz. 96 (5), 1613–1628 (1989).
4. Yu. A. Kholodov, A. N. Kozlov, and A. M. Gorbach, Magnetic Fields of Biological Objects (Nauka, Moscow, 1987, 138 pp.) [in Russian].
5. E. B. Alexandrov, M. V. Balabas, D. Budker, et al., “Light-Induced Desorption of Alkali-Atoms from Paraffin Coating,” Phys. Rev. A 66 (4), 042903 (2002).