@article{Cate_2010,
    doi = {10.1145/1706591.1706598},
    url = {https://doi.org/10.1145%2F1706591.1706598},
    year = {2010},
    month = {mar},
    publisher = {Association for Computing Machinery ({ACM})},
    volume = {57},
    number = {3},
    pages = {1--41},
    author = {Balder Ten Cate and Luc Segoufin},
    title = {Transitive closure logic, nested tree walking automata, and {XPath}},
    journal = {Journal of the {ACM}}
}

@article{Cate_2010, doi = {10.1145/1706591.1706598}, url = {https://doi.org/10.1145%2F1706591.1706598}, year = {2010}, month = {mar}, publisher = {Association for Computing Machinery ({ACM})}, volume = {57}, number = {3}, pages = {1--41}, author = {Balder Ten Cate and Luc Segoufin}, title = {Transitive closure logic, nested tree walking automata, and {XPath}}, journal = {Journal of the {ACM}} }