@article{AIHPA_1977__26_4_343_0,
     author = {Voros, A.},
     title = {Asymptotic $\hbar $-expansions of stationary quantum states},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {343--403},
     publisher = {Gauthier-Villars},
     volume = {26},
     number = {4},
     year = {1977},
     mrnumber = {456138},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1977__26_4_343_0/}
}