Yip, K. C. H. and Yau, K. K. W. (2005), ``On Modeling Claim Frequency Data In General Insurance With Extra Zeros'', Insurance: Mathematics and Economics, 36, 153-163.
Zhang, Y (2013). ``cplm
: Compound Poisson Linear Models''. A vignette for R package cplm
. Available from https://CRAN.R-project.org/package=cplm
Qian, W., Yang, Y., Yang, Y. and Zou, H. (2016), ``Tweedie's Compound
Poisson Model With Grouped Elastic Net,'' Journal of Computational and Graphical Statistics, 25, 606-625.