TY - JOUR AU - A. Pliƛ TI - On the uniqueness of the non-negative solution of the homogeneous Cauchy problem for a system of partial differential equations JO - Annales Polonici Mathematici PY - 1955 SP - 314 EP - 318 VL - 2 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-2-2-314-318/ DO - 10.4064/ap-2-2-314-318 LA - en ID - 10_4064_ap_2_2_314_318 ER -