@article{JEDP_1998____A14_0,
     author = {V\~{u} Ngọc, San},
     title = {Conditions de {Bohr-Sommerfeld} pour les singularit\'es focus-focus et monodromie quantique},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {14},
     pages = {1--13},
     publisher = {Universit\'e de Nantes},
     year = {1998},
     mrnumber = {2000f:58062},
     language = {fr},
     url = {http://archive.numdam.org/item/JEDP_1998____A14_0/}
}