@article{Zhou_2008,
    doi = {10.1016/j.jsc.2008.02.001},
    url = {https://doi.org/10.1016%2Fj.jsc.2008.02.001},
    year = {2008},
    month = {oct},
    publisher = {Elsevier {BV}},
    volume = {43},
    number = {10},
    pages = {726--745},
    author = {Meng Zhou and Franz Winkler},
    title = {Computing difference-differential dimension polynomials by relative Gröbner bases in difference-differential modules},
    journal = {Journal of Symbolic Computation}
}

@article{Zhou_2008, doi = {10.1016/j.jsc.2008.02.001}, url = {https://doi.org/10.1016%2Fj.jsc.2008.02.001}, year = {2008}, month = {oct}, publisher = {Elsevier {BV}}, volume = {43}, number = {10}, pages = {726--745}, author = {Meng Zhou and Franz Winkler}, title = {Computing difference-differential dimension polynomials by relative Gröbner bases in difference-differential modules}, journal = {Journal of Symbolic Computation} }