TY  - JOUR
AU  - V. PTAK
TI  - Some Metric Aspects of the Open Mapping and Closed Graph Theorems.
JO  - Mathematische Annalen
PY  - 1966
SP  - 95
EP  - 104
VL  - 163
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1966__163_161355/
ID  - MAN_1966__163_161355
ER  -