@article{RM_1975_30_3_a24,
     author = {M. A. Shubin},
     title = {The coincidence of the ordinary and the almost periodic spectrum of an elliptic operator},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1975_30_3_a24/}
}