@article{GDZPPN002460343, title = {Bivariate Non-central Negative Binomial Distributions: Another Generalisation.}, journal = {Metrika}, volume = {33}, year = {1986}, pages = {29-46}, zbl = {0601.62068}, url = {http://dml.mathdoc.fr/item/GDZPPN002460343} }
Lee, P.A.; Ong, S.H. Bivariate Non-central Negative Binomial Distributions: Another Generalisation.. Metrika, Tome 33 (1986) pp. 29-46. http://gdmltest.u-ga.fr/item/GDZPPN002460343/