%0 Journal Article %A Stefan Bal %T Convergence of a difference method for a system of first order partial differential equations of hyperbolic type %J Annales Polonici Mathematici %D 1974 %P 19-36 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-30-1-19-36/ %R 10.4064/ap-30-1-19-36 %G en %F 10_4064_ap_30_1_19_36