@article{SEDP_2000-2001____A12_0,
     author = {V\~{u} Ngọc, San},
     title = {Invariants symplectiques et semi-classiques des syst\`emes int\'egrables avec singularit\'es},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:12},
     pages = {1--14},
     publisher = {Centre de math\'ematiques Laurent Schwartz, \'Ecole polytechnique},
     year = {2000-2001},
     zbl = {1072.37047},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_2000-2001____A12_0/}
}