%0 Journal Article
%A VIDAR THOMÉE
%T Estimates of the Friedrichs-Lewy type for mixed problems in the theory of linear hyperbolic differential equations in two independent variables
%J Mathematica Scandinavica
%D 1957
%P 93-114
%V 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MS2_1957__5_165654/
%F MS2_1957__5_165654