TY  - JOUR
AU  - T. Styś
TI  - The maximum principle for the systems of the difference equations
JO  - Annales Polonici Mathematici
PY  - 1968
SP  - 223
EP  - 230
VL  - 20
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-20-3-223-230/
DO  - 10.4064/ap-20-3-223-230
LA  - en
ID  - 10_4064_ap_20_3_223_230
ER  -