1. Confined Electrons and Photons. New Physics and Applications, Ed. by E. Burstein and C. Weisbuch (Plenum, New York, 1995).
2. J. D. Joannopoulos, R. D. Meade, and J. N. Winn, Photonic Crystals (Princeton Univ. Press, Princeton, N.J., 1995).
3. Yu. A. Vlasov, M. A. Kaliteevski, and V. V. Nikolaev, Phys. Rev. B 60(3), 1555 (1999).
4. E. L. Ivchenko, A. I. Nesvizhskii, and S. Iorda, Fiz. Tverd. Tela (St. Petersburg) 36(7), 2118 (1994) [Phys. Solid State 36, 1156 (1994)].
5. X. Du, D. Zhang, X. Zhang, et al., Phys. Rev. B 56(1), 28 (1997).