TY  - JOUR
AU  - M. I. Shtogrin
TI  - Positivity of Curvature and Convexity of Faces
JO  - Informatics and Automation
PY  - 2006
SP  - 277
EP  - 284
VL  - 252
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_2006_252_a21/
LA  - ru
ID  - TRSPY_2006_252_a21
ER  -