@article{CRPHYS_2009__10_5_352_0,
     author = {S\'ebastien Guenneau and S. Anantha Ramakrishna},
     title = {Negative refractive index, perfect lenses and checkerboards: {Trapping} and imaging effects in folded optical spaces},
     journal = {Comptes Rendus. Physique},
     pages = {352--378},
     publisher = {Elsevier},
     volume = {10},
     number = {5},
     year = {2009},
     doi = {10.1016/j.crhy.2009.04.002},
     language = {en},
}