Extended Poisson–Tweedie: Properties and regression models for count data - Bonat, Wagner H.; Jørgensen, Bent; Kokonendji, Célestin C.; Hinde, John; Demétrio, Clarice G. B. (Statistical modelling, 2018)
Keywords: Estimating functions; underdispersion; overdispersion; count data; Poisson–Tweedie distribution