1 M. Ghergu, "Singular elliptic problems Bifurcation and Asymptotic Analysis" Clarendon Press Oxford 2008
2 A. Ambrosetti, "On the inversion of some differential mappings with singularities between Banach spaces" 93 : 231-246, 1972
3 C. O. Alves, "On systems of equations involving subcritical or critical Sobolev exponents, Nonlinear Analysis" 42 : 771-787, 2000
4 Rabinowitz, P. H., "Minimax methods in critical point theory with applications to differential equations" 65-, 1986
5 D. G. de Figueiredo, "Lectures on boundary value problems of the Ambrosetti-Prodi type" 232-292, 1980
6 K. C. Chang, "Ambrosetti-Prodi type results in elliptic systems" 51 : 553-566, 2002
1 M. Ghergu, "Singular elliptic problems Bifurcation and Asymptotic Analysis" Clarendon Press Oxford 2008
2 A. Ambrosetti, "On the inversion of some differential mappings with singularities between Banach spaces" 93 : 231-246, 1972
3 C. O. Alves, "On systems of equations involving subcritical or critical Sobolev exponents, Nonlinear Analysis" 42 : 771-787, 2000
4 Rabinowitz, P. H., "Minimax methods in critical point theory with applications to differential equations" 65-, 1986
5 D. G. de Figueiredo, "Lectures on boundary value problems of the Ambrosetti-Prodi type" 232-292, 1980
6 K. C. Chang, "Ambrosetti-Prodi type results in elliptic systems" 51 : 553-566, 2002