1. Ai, S., Chen, X., Hastings, S.P.: Layers and spikes in non-homogeneous bistable reaction-diffusion equations. Trans. Am. Math. Soc. 358, 3169–3206 (2006)
2. Cantrell, R.S., Cosner, C.: Spatial Ecology via Reaction-Diffusion Equations. Wiley, Chichester (2003)
3. Casten, R.G., Holland, C.J.: Instability results for reaction diffusion equations with Neumann boundary conditions. J. Differ. Equ. 27, 266–273 (1978)
4. Cosner, C., Lou, Y.: Does movement toward better environments always benefit a population? J. Math. Appl. 277, 489–503 (2003)
5. Gierer, A., Meinhart, H.: A theory of biological pattern formation. Kybernetik (Berlin) 12, 30–39 (1972)