@article{10_14736_kyb_2018_5_0921,
     author = {Hung, Tran Loc and Hau, Tran Ngoc},
     title = {On the accuracy of approximation of the distribution of negative-binomial random sums by the gamma distribution},
     journal = {Kybernetika},
     pages = {921--936},
     publisher = {mathdoc},
     volume = {54},
     number = {5},
     year = {2018},
     doi = {10.14736/kyb-2018-5-0921},
     mrnumber = {3893128},
     zbl = {07031752},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14736/kyb-2018-5-0921/}
}