1. N. M. Pomerantsev, V. M. Rykhkov, and G. V. Skrotskii, Physical Fundamentals of Quantum Magnetometry [in Russian], Nauka, Moscow (1972).
2. E. B. Aleksandrov, Vestn. Akad. Nauk SSSR, No. 11, 14 (1978).
3. E. B. Aleksandrov, Tr. Metrolog. Inst. SSSR, No. 215(275), 3 (1978).
4. A. Kastler and J. Tannoudji, Optical Pumping, Progress in Optics,5, 3 (1966).
5. G. S. Vasyutochkin, in: Methods of Exploration Geophysics, Alkali-Metal Vapor Quantum Magnetometers and Their Applications [in Russian], NPO ?Geofizika,? Leningrad, Issue 23 (1966), p. 19.