Voir la notice de l'article provenant de la source Math-Net.Ru
@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/} }
A. D. Lyashko. The method of lines for nonlinear elliptic equations of arbitrary order. Differencialʹnye uravneniâ, Tome 7 (1971) no. 9, pp. 1649-1654. http://geodesic.mathdoc.fr/item/DE_1971_7_9_a11/