%0 Journal Article %A P. Besala %T On the uniqueness of initial-value problems for partial differential equations of the first order %J Annales Polonici Mathematici %D 1981 %P 105-108 %V 40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-40-2-105-108/ %R 10.4064/ap-40-2-105-108 %G en %F 10_4064_ap_40_2_105_108