@article{Flajolet_1995,
    doi = {10.1006/jsco.1995.1070},
    url = {https://doi.org/10.1006%2Fjsco.1995.1070},
    year = {1995},
    month = {nov},
    publisher = {Elsevier {BV}},
    volume = {20},
    number = {5-6},
    pages = {653--671},
    author = {Philippe Flajolet and Bruno Salvy},
    title = {Computer Algebra Libraries for Combinatorial Structures},
    journal = {Journal of Symbolic Computation}
}

@article{Flajolet_1995, doi = {10.1006/jsco.1995.1070}, url = {https://doi.org/10.1006%2Fjsco.1995.1070}, year = {1995}, month = {nov}, publisher = {Elsevier {BV}}, volume = {20}, number = {5-6}, pages = {653--671}, author = {Philippe Flajolet and Bruno Salvy}, title = {Computer Algebra Libraries for Combinatorial Structures}, journal = {Journal of Symbolic Computation} }