%0 Journal Article %A Lipton, Robert %A Viator, Robert Jr. %T Bloch waves in crystals and periodic high contrast media %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2017 %P 889-918 %V 51 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2016046/ %R 10.1051/m2an/2016046 %G en %F M2AN_2017__51_3_889_0