Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1972_117_a16, author = {G. N. Yakovlev}, title = {Unbounded solutions of degenerate elliptic equations}, journal = {Informatics and Automation}, pages = {312--320}, publisher = {mathdoc}, volume = {117}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a16/} }
G. N. Yakovlev. Unbounded solutions of degenerate elliptic equations. Informatics and Automation, Investigations in the theory of differentiable functions of many variables and its applications. Part IV, Tome 117 (1972), pp. 312-320. http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a16/