@article{10_37236_1243,
     author = {Axel Riese},
     title = {A generalization of {Gosper's} algorithm to bibasic hypergeometric summation},
     journal = {The electronic journal of combinatorics},
     year = {1996},
     volume = {3},
     number = {1},
     doi = {10.37236/1243},
     zbl = {0885.33012},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1243/}
}