1. K.F. Lindman: the last Hertzian, and a harbinger of electromagnetic chirality;Lindell;IEEE Antennas Propagat. Mag.,1992
2. Metallic delay lenses;Kock;Bell Syst. Tech. J.,1948
3. A. Ishimaru, Electromagnetic Wave Propagation, Radiation and Scattering, Prentice-Hall, Englewood Cliffs, NJ, 1991.
4. W.R. Tinga, Mixture laws and microwave–material interactions, in: A. Priou (Ed.), Progress in Electromagnetic Research (PIER) Monograph Series on Dielectric Properties of Heterogeneous Materials, Vol. 6, Elsevier, New York, 1992, pp. 1–40 (Chapter 1).
5. J. Brown, Artificial dielectrics, in: J.B. Birks, J.H. Schulman (Eds.), Progress in Dielectrics, Vol. 2, Heywood, London, 1960, pp. 193–225.