1. M. Takomoto, F. Hong, R. Higashi, H. Katori, Nature 435, 321 (2005)
2. W.D. Phillips, H. Metcalf, Phys. Rev. Lett. 48, 596 (1982)
3. C. Adler, F. Narducci, C. Sukenik, J. Mulholland, S. Goodale, Bull. APS 51, 51 (2006)
4. S.N. Bagaeyv, V.I. Baraulia, A.E. Bonert, A.N. Goncharov, M.R. Seydaliev, A.S. Tychkov, Laser Phys. 11, 1 (2001)
5. Y.B. Ovchinnikov, Opt. Commun. 276, 261 (2007)