TY  - JOUR
AU  - Andrzej Derdziński
TI  - On some condition for a submanifold of Euclidean space to be a sphere
JO  - Annales Polonici Mathematici
PY  - 1977
SP  - 53
EP  - 61
VL  - 34
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-34-1-53-61/
DO  - 10.4064/ap-34-1-53-61
LA  - en
ID  - 10_4064_ap_34_1_53_61
ER  -