TY  - JOUR
AU  - Helmut Reckziegel
TI  - On the Eigenvalues of the Shape Operator of an Isometric Immersion into a Space of Constant Curvature.
JO  - Mathematische Annalen
PY  - 1979
SP  - 71
EP  - 82
VL  - 243
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1979__243_182802/
ID  - MAN_1979__243_182802
ER  -