@article{DE_1983_19_7_a11,
     author = {A. V. Gulin and A. V. Kregzhde and N. P. Savenkova},
     title = {Difference methods for solving some spectral problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1207--1215},
     publisher = {mathdoc},
     volume = {19},
     number = {7},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_7_a11/}
}