TY  - JOUR
AU  - A. Pliś
TI  - On the uniqueness of the non-negative solution of the homogeneous mixed problem for a system of partial differential equations
JO  - Annales Polonici Mathematici
PY  - 1959
SP  - 255
EP  - 258
VL  - 7
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-7-3-255-258/
DO  - 10.4064/ap-7-3-255-258
LA  - en
ID  - 10_4064_ap_7_3_255_258
ER  -