@article{DE_1994_30_2_a21,
     author = {A. T. Taldykin and E. A. Isakova},
     title = {On obtaining the best approximations to the solution of boundary value problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {346--349},
     publisher = {mathdoc},
     volume = {30},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_2_a21/}
}