%0 Journal Article %A T. Koboyashi %A H. Pecher %A Y. Shibata %T On a global in time existence theorem of smooth solutions to an nonlinear wave equation with viscosity. %J Mathematische Annalen %D 1993 %P 215-234 %V 296 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1993__296_4_165083/ %F MAN_1993__296_4_165083