1. Mathematical Aspects of Reaction and Diffusion Systems;Fife,1979
2. The wave of advance of advantageous gene;Fisher;Ann. Eugen.,1937
3. S.A. Gourley, Wave front solutions of a diffusive delay model for population of Daphnia magna, Comput. Math. Appl., to appear
4. Introduction to Functional Differential Equations;Hale,1993
5. Study of a diffusion equation that is related to the growth of a quality of matter, and its application to a biological problem;Kolmogorov;Byul. Moskov. Gos. Univ. Ser. A Mat. Mekh.,1937