%0 Journal Article
%A Guo, Bao-Zhu
%A Zhang, Zhi-Xiong
%T On the well-posedness and regularity of the wave equation with variable coefficients
%J ESAIM: Control, Optimisation and Calculus of Variations
%D 2007
%P 776-792
%V 13
%N 4
%I EDP-Sciences
%U http://archive.numdam.org/articles/10.1051/cocv:2007040/
%R 10.1051/cocv:2007040
%G en
%F COCV_2007__13_4_776_0