@article{GFA_1993__3_6_58137,
     author = {Y. Ruan},
     title = {Symplectic {Topology} and {Extemal} {Rays.}},
     journal = {Geometric and functional analysis},
     pages = {395--430},
     publisher = {mathdoc},
     volume = {3},
     number = {6},
     year = {1993},
     zbl = {0806.53032},
     url = {http://geodesic.mathdoc.fr/item/GFA_1993__3_6_58137/}
}