@article{DAN_1961_141_3_a15,
     author = {I. S. Chara},
     title = {A numerical method of solving eigenvalue problems},
     journal = {Doklady Akademii Nauk},
     pages = {574--577},
     publisher = {mathdoc},
     volume = {141},
     number = {3},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_3_a15/}
}