%0 Journal Article %A Boris Gralak %A Daniel Maystre %T Negative index materials and time-harmonic electromagnetic field %J Comptes Rendus. Physique %D 2012 %P 786-799 %V 13 %N 8 %I Elsevier %R 10.1016/j.crhy.2012.04.003 %G en %F CRPHYS_2012__13_8_786_0