@article{DE_1994_30_7_a16,
     author = {S. I. Solov'ev},
     title = {Superconvergence of finite-element approximations of eigenfunctions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1230--1238},
     publisher = {mathdoc},
     volume = {30},
     number = {7},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_7_a16/}
}