TY  - JOUR
AU  - Per-Anders Ivert
TI  - On Quasilinear Elliptic Systems of Diagonal Form.
JO  - Mathematische Zeitschrift
PY  - 1980
SP  - 283
EP  - 286
VL  - 170
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1980__170_172918/
ID  - MZ_1980__170_172918
ER  -