Eduardo D. Sontag, Doron Zeilberger. A symbolic computation approach to a problem involving multivariate Poisson distributions. Adv. Appl. Math., 44(4):359-377, 2010. [doi]
@article{SontagZ10, title = {A symbolic computation approach to a problem involving multivariate Poisson distributions}, author = {Eduardo D. Sontag and Doron Zeilberger}, year = {2010}, doi = {10.1016/j.aam.2009.08.002}, url = {https://doi.org/10.1016/j.aam.2009.08.002}, researchr = {https://researchr.org/publication/SontagZ10}, cites = {0}, citedby = {0}, journal = {Adv. Appl. Math.}, volume = {44}, number = {4}, pages = {359-377}, }