@article{ZVMMF_1984_24_5_a12,
     author = {M. A. Krasnosel'skii and A. V. Sobolev},
     title = {On a posteriori error estimates when seeking an eigenvector},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {754--756},
     publisher = {mathdoc},
     volume = {24},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1984_24_5_a12/}
}