@article{DE_1983_19_3_a14,
     author = {O. N. Litvin},
     title = {Generalized nonlinear interpolation and solution of boundary value problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {508--515},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_3_a14/}
}