1. Rate growth of solid tumors as a problem of diffusion;Burton;Growth,1966
2. A Stochastic Model for Immunological Feedback in Carcinogenesis: Analysis and Approximations;Dubin,1976
3. An asymptotic solution to the first passage time problem for singular diffusion arising in population biology;Hanson;SIAM J. Appl. Math.,1981
4. On the mechanism of experimental carcinogenesis;Iversen;Acta. Path. Microbiol. Scand.,1950
5. A Second Course in Stochastic Processes;Karlin,1981