Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2011_89_2_a8, author = {V. F. Lubyshev}, title = {Existence of {Multiple} {Solutions} of {Higher-Order} {Nonlinear} {Elliptic} {Equations}}, journal = {Matemati\v{c}eskie zametki}, pages = {260--271}, publisher = {mathdoc}, volume = {89}, number = {2}, year = {2011}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2011_89_2_a8/} }
V. F. Lubyshev. Existence of Multiple Solutions of Higher-Order Nonlinear Elliptic Equations. Matematičeskie zametki, Tome 89 (2011) no. 2, pp. 260-271. http://geodesic.mathdoc.fr/item/MZM_2011_89_2_a8/