Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1991_5_3_a9, author = {Georgi I. Chobanov}, title = {Non-Zero {Solutions} for a {Homogeneous} {Semilinear} {Elliptic} {Equation}}, journal = {Mathematica balkanica}, pages = {261}, publisher = {mathdoc}, volume = {5}, number = {3}, year = {1991}, url = {http://geodesic.mathdoc.fr/item/MABA_1991_5_3_a9/} }
Georgi I. Chobanov. Non-Zero Solutions for a Homogeneous Semilinear Elliptic Equation. Mathematica balkanica, Tome 5 (1991) no. 3, p. 261. http://geodesic.mathdoc.fr/item/MABA_1991_5_3_a9/