%0 Journal Article %A Kreiss, Heinz-Otto %A Ortiz, Omar E. %A Anders Petersson, N. %T Initial-boundary value problems for second order systems of partial differential equations %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2012 %P 559-593 %V 46 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2011060/ %R 10.1051/m2an/2011060 %G en %F M2AN_2012__46_3_559_0