@article{Fu_2013,
    doi = {10.1007/s00165-011-0214-3},
    url = {https://doi.org/10.1007%2Fs00165-011-0214-3},
    year = {2013},
    month = {nov},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {25},
    number = {6},
    pages = {847--891},
    author = {Xiang Fu and Michael C. Powell and Michael Bantegui and Chung-Chih Li},
    title = {Simple linear string constraints},
    journal = {Formal Aspects of Computing}
}

@article{Fu_2013, doi = {10.1007/s00165-011-0214-3}, url = {https://doi.org/10.1007%2Fs00165-011-0214-3}, year = {2013}, month = {nov}, publisher = {Association for Computing Machinery ({ACM})}, volume = {25}, number = {6}, pages = {847--891}, author = {Xiang Fu and Michael C. Powell and Michael Bantegui and Chung-Chih Li}, title = {Simple linear string constraints}, journal = {Formal Aspects of Computing} }