TY  - JOUR
AU  - Z. Kowalski
TI  - A difference method for a nonlinear system of elliptic equations with mixed derivatives
JO  - Annales Polonici Mathematici
PY  - 1980
SP  - 229
EP  - 243
VL  - 38
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-38-3-229-243/
DO  - 10.4064/ap-38-3-229-243
LA  - en
ID  - 10_4064_ap_38_3_229_243
ER  -