@article{TSG_1990-1991__9__133_0,
     author = {Raikov, George D.},
     title = {L'asymptotique des valeurs propres pour l'op\'erateur de {Schr\"odinger} avec un potentiel p\'eriodique perturb\'e},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {133--139},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {9},
     year = {1990-1991},
     mrnumber = {1715936},
     zbl = {0762.47021},
     language = {fr},
     url = {http://archive.numdam.org/item/TSG_1990-1991__9__133_0/}
}