1. Pozar, D. M., "Microstrip antenna aperture-coupled to a microstripline," Electron. Lett., Vol. 21, No. 2, 49-50, January 1985.
doi:10.1049/el:19850034
2. Sullivan, P. L. and D. H. Schaubert, "Analysis of an aperture coupled microstrip antenna," IEEE Trans. Antennas Propagation, Vol. 34, 977-984, August 1986.
doi:10.1109/TAP.1986.1143929
3. Pozar, D. M., "A reciprocity method of analysis for printed slot and slot-coupled microstrip antennas," IEEE Trans. Antennas Propagation, Vol. 34, 1439-1446, December 1986.
doi:10.1109/TAP.1986.1143785
4. Mosig, J. R. and F. E. Gardiol, "General integral equation formation for microstrip antennas and scatterers," IEE Procs., Vol. 132H, 424-432, 1985.
5. Chow, Y. L., J. J. Yang, and G. E. Howard, "Closed-form spatial Green’s function for the thick substrate," IEEE Trans. Microwave Theory Tech., Vol. 39, 588-592, March 1991.
doi:10.1109/22.75309
6. Fang, D. G., J. J. Yang, and G. Y. Delisle, "Discrete image theory for horizontal electric dipoles in a multilayered medium," IEE Proc., Vol. 135H, 297-303, 1988.
7. Aksun, M. I. and R. Mittra, "Derivation of closed-form Green’s function for a general microstrip geometry," IEEE Trans. Antennas Propagation., Vol. 40, 2055-2061, November 1992.
8. Sommerfeld, A., Partial Differential Equations in Physics, Academic Press, New York, 1949.