@article{DE_1971_7_9_a11,
     author = {A. D. Lyashko},
     title = {The method of lines for nonlinear elliptic equations of arbitrary order},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1649--1654},
     publisher = {mathdoc},
     volume = {7},
     number = {9},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_9_a11/}
}