TY  - JOUR
AU  - Y. Ruan
TI  - Symplectic Topology and Extemal Rays.
JO  - Geometric and functional analysis
PY  - 1993
SP  - 395
EP  - 430
VL  - 3
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/GFA_1993__3_6_58137/
ID  - GFA_1993__3_6_58137
ER  -