@article{Subramani_2004,
    doi = {10.1007/s00224-004-1220-0},
    url = {https://doi.org/10.1007%2Fs00224-004-1220-0},
    year = {2004},
    month = {dec},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {38},
    number = {5},
    pages = {647--668},
    author = {K. Subramani},
    title = {Tractable Fragments of Presburger Arithmetic},
    journal = {Theory of Computing Systems}
}

@article{Subramani_2004, doi = {10.1007/s00224-004-1220-0}, url = {https://doi.org/10.1007%2Fs00224-004-1220-0}, year = {2004}, month = {dec}, publisher = {Springer Science and Business Media {LLC}}, volume = {38}, number = {5}, pages = {647--668}, author = {K. Subramani}, title = {Tractable Fragments of Presburger Arithmetic}, journal = {Theory of Computing Systems} }