TY - JOUR AU - J. Chabrowski TI - On the representation of non-negative solutions of linear parabolic systems of partial differential equations JO - Annales Polonici Mathematici PY - 1973 SP - 11 EP - 16 VL - 28 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-28-1-11-16/ DO - 10.4064/ap-28-1-11-16 LA - en ID - 10_4064_ap_28_1_11_16 ER -