TY  - JOUR
AU  - A. A. Borisenko
AU  - K. D. Drach
TI  - Closeness to spheres of hypersurfaces with normal curvature bounded below
JO  - Sbornik. Mathematics
PY  - 2013
SP  - 1565
EP  - 1583
VL  - 204
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2013_204_11_a1/
LA  - en
ID  - SM_2013_204_11_a1
ER  -