@article{DE_1999_35_4_a12,
     author = {R. R. Gadyl'shin},
     title = {Asymptotics of the eigenvalues of a boundary value problem with rapidly oscillating boundary conditions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {540--551},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_4_a12/}
}