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@article{MZ_1983__182_173289, author = {John F. Toland}, title = {On {Positive} {Solutions} of -...u = {F(x,} u).}, journal = {Mathematische Zeitschrift}, pages = {351--358}, publisher = {mathdoc}, volume = {182}, year = {1983}, zbl = {0491.35048}, url = {http://geodesic.mathdoc.fr/item/MZ_1983__182_173289/} }
John F. Toland. On Positive Solutions of -...u = F(x, u).. Mathematische Zeitschrift, Tome 182 (1983), pp. 351-358. http://geodesic.mathdoc.fr/item/MZ_1983__182_173289/