1. Mathematical Aspects of Reacting and Diffusing Systems;Fife,1979
2. The Theory and Applications of Reaction–Diffusion Equations;Grindrod,1996
3. Nonlinear Parabolic and Elliptic Equations;Pao,1992
4. Nonlinear Singular Perturbation Phenomena;Chang,1984
5. Monotone schemes for semilinear elliptic systems related to ecology;Leung;Math. Methods Appl. Sci.,1982