TY  - JOUR
AU  - Carvalho e Silva, Jaime
TI  - A sufficient condition for the well posedness of a Goursat problem
JO  - Portugaliae mathematica
PY  - 1988
SP  - 221
EP  - 228
VL  - 45
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1988__45_2_115626/
LA  - en
ID  - PORMA_1988__45_2_115626
ER  -