1. Dechamps, G. A., "Ray techniques in electromagnetics," Proc. IEEE, Vol. 60, 1022-1035, 1972.
2. Felson, L. B., Hybrid Formulation of Wave Propagation and Scattering, Nato ASI Series, 1984.
3. Chapman, C. H. and R. Drummond, "Body wave seismograms in inhomogeneous media using Maslov asymptotic theory," Bull. Seismol., Vol. 72, 277-317, 1982. Google Scholar
4. Maslov, V. P., "Perturbation theory and asymptotic methods," Moskov., 1965. Google Scholar
5. Zandi, O., Z. Atlasbaf, and K. Forooraghi, "Flat multilayer dielectric reflector antennas," Progress In Electromagnetics Research, Vol. 72, 1-19, 2007.
doi:10.2528/PIER07022604 Google Scholar
6. Gizesik, J. A., "Focusing properties of a three-parameter class of oblate, Luneberg-like inhomogeneous lenses," Journal of Electromagnetic Waves and Applications, Vol. 19, No. 8, 1005-1019, 2005.
doi:10.1163/156939305775526089 Google Scholar
7. Nikolic, N., J. S. Kot, and S. Vinogradov, "Scattering by a Luneberg Lens partially covered by a metallic cap," J. of Electromag. Waves and Appl., Vol. 21, No. 4, 549-563, 2007.
doi:10.1163/156939307780616856 Google Scholar
8. Boutayeb, H., A.-C. Tarot, and K. Mahdjoubi, "Focusing characteristics of a metallic cylindrical electromagnetic band gap structure with defects," Progress In Electromagnetics Research, Vol. 66, 89-103, 2006.
doi:10.2528/PIER06100504 Google Scholar
9. Vinogradov, S. S., P. D. Smith, J. S. Kot, and N. Nikolic, "Radar cross-section studies of spherical lens reflectors," Progress In Electromagnetics Research, Vol. 72, 325-337, 2007.
doi:10.2528/PIER07031206 Google Scholar
10. Kravtsov, Y. A., "Two new asymptotic methods in the theory of wave propagation in inhomogeneous media (review)," Sov. Phys. Acoust., Vol. 14, No. 1, 1-17, 1968. Google Scholar
11. Ziolkowski, R. W. and G. A. Deschamps, "Asymptotic evolution of high-frequency field near a caustic: An introduction to Maslov's method," Radio Sci., Vol. 19, 1001-1025, 1984. Google Scholar
12. Hongo, K., Y. Ji, and E. Nakajima, "High-frequency expression for the field in the caustic region of a reflector using Maslov's method," Radio Sci., Vol. 21, No. 6, 911-919, 1986.
doi:10.1029/RS021i006p00911 Google Scholar
13. Hongo, K. and Y. Ji, "High-frequency expression for the field in the caustic region of a cylindrical reflector using Maslov's method," Radio Sci., Vol. 22, No. 3, 357-366, 1987.
doi:10.1029/RS022i003p00357 Google Scholar
14. Hongo, K. and Y. Ji, "Study of the field around the focal region of spherical reflector antenna by Maslov's method," IEEE Trans. Antennas Propagat., Vol. 36, No. 5, 592-598, 1988.
doi:10.1109/8.192134 Google Scholar
15. Ji, Y. and K. Hongo, "Field in the focal region of a dielectric spherical by Maslov's method," J. Opt. Soc. Am. A, Vol. 8, 1721-1728, 1991. Google Scholar
16. Ji, Y. and K. Hongo, "Analysis of electromagnetic waves refracted by a spherical dielectric interface by Maslov's method," J. Opt. Soc. Am. A, Vol. 8, 541-548, 1991. Google Scholar
17. Aziz, A., Q. A. Naqvi, and K. Hongo, "Analysis of the fields in two dimensional Cassegrain system," Progress In Electromagnetics Research, Vol. 71, 227-241, 2007.
doi:10.2528/PIER07022001 Google Scholar
18. Aziz, A., A. Ghaffar, Q. A. Naqvi, and K. Hongo, "Analysis of the fields in two dimensional Gregorian system," J. of Electromagn. Waves and Appl., Vol. 22, No. 1, 85-97, 2008.
doi:10.1163/156939308783122733 Google Scholar
19. Ghaffar, A., Q. A. Naqvi, and K. Hongo, "Analysis of the fields in three dimensional Cassegrain system," Progress In Electromagnetics Research, Vol. 72, 215-240, 2007.
doi:10.2528/PIER07031602 Google Scholar
20. Hussain, A., Q. A. Naqvi, and K. Hongo, "Radiation characteristics of the Wood lens using Maslov's method," Progress In Electromagnetics Research, Vol. 73, 107-129, 2007.
doi:10.2528/PIER07030302 Google Scholar
21. Ghaffar, A., A. Hussain, Q. A. Naqvi, and K. Hongo, "Radiation characteristics of an inhomogeneous slab using Maslov's method," J. of Electromagn. Waves and Appl., Vol. 22, No. 2, 301-312, 2008. Google Scholar
22. Balanis, C. A., Advanced Engineering Electomagnetics, John Wiley & Sons, 1989.
23. Lakhtakia, A., "Beltrami fields in chiral media," Contemporary Chemical Physics, 1994. Google Scholar
24. Lakhtakia, A., V. V. Varadan, and V. K. Varadan, "What happens to plane waves at the planar interfaces of mirrorconjugated chiral media," Journal of the Optical Society of America A: Optics, Vol. 6, No. 1, 23-26, 1989. Google Scholar