1. Decay to uniform states in ecological interactions;Brown;SIAM J. Appl. Math.,1980
2. Positively invariant regions for systems of nonlinear diffusion equations;Chueh;Indiana Univ. Math. J.,1977
3. Theory of Ordinary Differential Equations;Coddington,1955
4. Nonlinear Diffusion Problems;Diekmann,1976
5. C. Conley and R. A. Gardner, An application of the generalized Morse index to travelling wave solutions of a competition model, to appear.