TY  - JOUR
AU  - O. R. Musin
TI  - Curvature extrema and four-vertex-theorems for polygons and polyhedra
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 2001
SP  - 251
EP  - 271
VL  - 280
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_2001_280_a18/
LA  - ru
ID  - ZNSL_2001_280_a18
ER  -