TY  - JOUR
AU  - A. P. Robertson
AU  - W. J. Robertson
TI  - On the closed graph theorem
JO  - Matematika
PY  - 1960
SP  - 73
EP  - 78
VL  - 4
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1960_4_6_a4/
LA  - ru
ID  - MAT_1960_4_6_a4
ER  -