@article{ZVMMF_1964_4_2_a12,
     author = {B. P. Pugachov},
     title = {Approximate evaluation of eigenvectors},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {340--343},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1964_4_2_a12/}
}