1. A. Sihvola, Metamaterials in electromagnetics, Metamaterials 1, 2 (2007)
2. R. Marqués, F. Martín, M. Sorolla, Metamaterials with Negative Parameters: Theory, Design and Microwave Applications (Wiley, 2008)
3. L. Solymar, E. Shamonina, Waves in Metamaterials (Oxford University Press, New York, 2009)
4. R.A. Shelby, D.R. Smith, S. Schultz, Science 292, 77 (2001)
5. V.G. Veselago, Soviet Physics Uspekhi 10, 509 (1968)