TY  - JOUR
AU  - Vlastimil Pták
TI  - A Theorem of the Closed Graph Type.
JO  - Manuscripta mathematica
PY  - 1974
SP  - 109
EP  - 130
VL  - 13
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM2_1974__13_154258/
ID  - MM2_1974__13_154258
ER  -