TY  - JOUR
AU  - Ph. Hartman
TI  - Remarks on a uniqueness theorem for closed surfaces.
JO  - Mathematische Annalen
PY  - 1957
SP  - 426
EP  - 430
VL  - 133
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1957__133_160560/
ID  - MAN_1957__133_160560
ER  -