TY  - JOUR
AU  - G. Perelman
TI  - Widths of Nonnegatively Curved Spaces.
JO  - Geometric and functional analysis
PY  - 1995
SP  - 445
EP  - 463
VL  - 5
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/GFA_1995__5_4_58197/
ID  - GFA_1995__5_4_58197
ER  -