@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://www.numdam.org/item/JEDP_1998____A14_0/} }