1. Abdusamatov, Kh., Nauka Zhizn’, 2009, no. 1, p. 34.
2. Albert, D. and Galchen, R., V Mire Nauki, 2009, no. 5, p. 18.
3. Belinskii, A.V., Usp. Fiz. Nauk, 1997, vol. 167, p. 323.
4. Bouwmeester, D., Pan, J.-W., Mattle, K., Eibl, M., Weinfurter, H., and Zeilinger, A., Nature, 1997, vol. 390, p. 575.
5. Chaplin, W.J., Dumbill, A.M., Elsworth, Y., et al, Mon. Not. Roy. Astron. Soc., 2003, vol. 343, p. 813.