1. Mei, K. K. and Y. W. Liu, "On time domain measured equation of invariance," URSI Meeting Seattle, No. 6, 1994.
2. Liu, Y. W., K. K. Mei, and K. N. Yang, "Measured equation of invariance in time domain," IEEE Asia Pacific Microwave Conference, 1997.
3. Mei, K. K., R. Pous, Z. Chen, Y. Liu, and M. D. Prouty, "The measured equation of invariance — A new concept in field computation," IEEE Trans. on Ant. and Prop., Vol. 42, No. 3, 1994.
4. Jevtic, J. O., "How invariant is the measured equation of invariance?'' IEEE Microwave and Guided Wave Letters," ``How invariant is the measured equation of invariance? IEEE Microwave and Guided Wave Letters, Vol. 5, No. 2, 1995.
5. Liu, Y., K. Lan, C. Liao, and K. K. Mei, "Time domain MEI method for radiation of a line source," IEE, No. 1, 1999.
6. Liao, C., L. Meng, D. Yang, and X.-M. Zhong, "Analysis of the numerical error for time domain MEI absorbing boundary condition," Proceedings of APMC, 2001.
7. Cheldavi, A. and M. Khalaj Amirhosseini, "Analysis of circulant symmetric coupled strip lines," J. of Electromagnetic Waves and Appl., Vol. 16, No. 7, 977-994, 2003.
8. Taflove, A. and S. C. Hagness, Computational Electrodynamics: The Finite Difference Time Domain Method, 2nd edition Artech House, 2000.