1. Laser-Cooled and Trapped Atoms, ed. by W.D. Philips, Progress in Quantum Electronics, 8 (Pergamon, New York 1984)
2. S.N. Bagayev, A.E. Baklanov, V.P. Chebotayev, A.S. Dychkov, P.V. Pokasov: Pis'ma Zh. Eksp. Teor. Fiz. 45, 371 (1987);
3. Appl. Phys. B48, 31 (1989)
4. S.N. Bagayev, V.P. Chebotayev, A.K. Dmitriyev, A.E. Om, Yu.V. Nekrasov, B.N. Skvortsov: Proc. IV-th Frequency Standards and Metrology Symposium (Italy, September 1988) p. 277
5. E.V. Baklanov, B.Ya. Dubetsky: Kvantovaya Elektron. 2, 2041 (1975)