@article{DE_1981_17_7_a15,
     author = {A. D. Lyashko and E. M. Fedotov},
     title = {On the correctness of nonlinear two-layer operator-difference schemes},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1304--1316},
     publisher = {mathdoc},
     volume = {17},
     number = {7},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_7_a15/}
}