1. Asmussen, S. and Hering, H. (1983): Branching Processes. Birkhäuser, Boston, Basel, Stuttgart
2. Athreya, K.B. and Ney, P. (1972): Branching Processes. Springer-Verlag, Berlin, Heidelberg, New York
3. Baraabba, V.P., Mason, R.O. and Mitroff, I.I. (1983): Federal Statistics in a Complex Environment. The American Statistician 37:203–212
4. Chandrasekaran, C. and Hermalin, A.I. (Editors) (1975): Measuring the Effect of Family Planning Programs on Fertility. Ordina Editions, 4830 Dolhain, Belgium
5. Coale, A.J. and Demeny, P. (1966): Regional Model Life Tables and Stable Populations. Princeton University Press, Princeton, New Jersey