%0 Journal Article %A Jalal Shatah %T Regularity results for semilinear and geometric wave equations %J Banach Center Publications %D 1997 %P 69-90 %V 41 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/-41-1-69-90/ %R 10.4064/-41-1-69-90 %G en %F 10_4064__41_1_69_90