1. Nonlinear Semigroups and Differential Equations in Banach Spaces;Barbu,1976
2. Sur une classe de problèmes d’évolution non linéaires;Bardos;J. Differential Equations,1969
3. I. Ben Gharbia, Jean Charles Gilbert, J. Jaffre, Nonlinear complementarity constraints for two-phase flow in porous media with gas phase appearance and disappearance, manuscript, 2011.
4. A numerical method for solving the problem ut−Δf(u)=0;Berger;RAIRO Anal. Numér.,1979
5. Monotonicity methods in Hilbert space and some applications to nonlinear partial differential equations;Brezis,1971