@article{DE_1978_14_5_a13,
     author = {P. E. Sobolevskii and \`E. A. Shteynvil},
     title = {An approach to the solution of ill-posed problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {900--904},
     publisher = {mathdoc},
     volume = {14},
     number = {5},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_5_a13/}
}