@article{DAN_1971_200_5_a6,
     author = {G. V. Rozenblum},
     title = {On the distribution of eigenvalues of the first boundary value problem in unbounded regions},
     journal = {Doklady Akademii Nauk},
     pages = {1034--1036},
     publisher = {mathdoc},
     volume = {200},
     number = {5},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a6/}
}