A generalization of the classical Galton-Watson process is to allow the offspring distribution to vary with time. Some limit theorems for the classical case are generalized to this process in varying environments. © 1976.
Goettge, R. T. (1976). Limit theorems for the supercritical Galton-Watson process in varying environments. Mathematical Biosciences, 28(1–2), 171–190. https://doi.org/10.1016/0025-5564(76)90100-0