1. Aitchinson, J., Brown, J.A.C: The lognormal distribution. Cambridge: Univ. of Cambridge Press 1966
2. Capocelli, R.M., Ricciardi, L.M.: Population growth as a diffusion process. Proc. First Cybernetics Cong., Casciana Terme (Pisa) (1971)
3. Capocelli, R.M., Ricciardi, L.M.: A continuous Markovian model for neuronal activity. J. theor. Biol. 40, 369–387 (1973)
4. Capocelli, R.M., Ricciardi, L. M.: A diffusion model for population growth in randomly varying environment. Theor. Pop. Biol. 5, 28–41 (1974)
5. Crow, J.F., Kimura, M.: An introduction to population genetics theory. New York: Harper & Row 1970