@article{Levin_2000,
    doi = {10.1006/jsco.1999.0412},
    url = {https://doi.org/10.1006%2Fjsco.1999.0412},
    year = {2000},
    month = {oct},
    publisher = {Elsevier {BV}},
    volume = {30},
    number = {4},
    pages = {357--382},
    author = {Alexander Levin},
    title = {Reduced Gröbner Bases, Free Difference{\textendash}Differential Modules and Difference{\textendash}Differential Dimension Polynomials},
    journal = {Journal of Symbolic Computation}
}

@article{Levin_2000, doi = {10.1006/jsco.1999.0412}, url = {https://doi.org/10.1006%2Fjsco.1999.0412}, year = {2000}, month = {oct}, publisher = {Elsevier {BV}}, volume = {30}, number = {4}, pages = {357--382}, author = {Alexander Levin}, title = {Reduced Gröbner Bases, Free Difference{\textendash}Differential Modules and Difference{\textendash}Differential Dimension Polynomials}, journal = {Journal of Symbolic Computation} }