1. Nader, E. and Richard, Z.W., eds., Metamaterials: Physics and Engineering Explorations, New Jersey: Wiley-IEEE Press, 2006.
2. Ramakrishna, S.A. and Grzegorczyk, T.M., Physics and Applications of Negative Refractive Index Materials, New York: Taylor & Francis, 2009.
3. Cai, W. and Shalaev, V., Optical Metamaterials, Dordrecht: Springer, 2010.
4. Veselago, V.G., UFN, 1967, vol. 92, p. 517.
5. Smith, D.R., Padilla, W.J., et al., Phys. Rev. Lett., 2000, vol. 84, p. 4184.