Rafid Saeed Abdulrazak Alshkaki,  Moment Estimators of the Parameters of Zero-One Inflated Negative Binomial Distribution.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 121(1). 38 - 41
    [viewed 14 October 2019]. Available from: https://publications.waset.org/pdf/10006556.