1. The electrodynamics of substances with simultaneously negative values of and μ;Veselago;Soviet Phys. uspekhi.,1968
2. Electromagnetic metamaterials;Walser;Proc. SPIE – Int. Soc. Opt. Eng.,2001
3. Photonic band gap structure containing metamaterial with negative permittivity and permeability;Nefedov;Phys. Rev. E Stat. Nonlinear Soft Matter Phys.,2002
4. Elastic and acoustic wave band structure;Sigalas;J. Sound Vibration,1992
5. Acoustic band structure of periodic elastic composites;Kushwaha;Phys. Rev. Lett.,1993