%0 Journal Article %A A. Pliƛ %T On the uniqueness of the non-negative solution of the homogeneous Cauchy problem for a system of partial differential equations %J Annales Polonici Mathematici %D 1955 %P 314-318 %V 2 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-2-2-314-318/ %R 10.4064/ap-2-2-314-318 %G en %F 10_4064_ap_2_2_314_318