TY  - JOUR
AU  - N. G. Ananov
AU  - Yu. D. Burago
AU  - V. A. Zalgaller
TI  - Three-dimensional manifolds of nonnegative Ricci curvature, with boundary
JO  - Sbornik. Mathematics
PY  - 1987
SP  - 163
EP  - 186
VL  - 56
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/SM_1987_56_1_a10/
LA  - en
ID  - SM_1987_56_1_a10
ER  -