@inproceedings{Libkin_2013,
    doi = {10.1145/2448496.2448513},
    url = {https://doi.org/10.1145%2F2448496.2448513},
    year = {2013},
    month = {mar},
    publisher = {{ACM}},
    author = {Leonid Libkin and Wim Martens and Domagoj Vrgo{\v{c}}},
    title = {Querying graph databases with {XPath}},
    booktitle = {Proceedings of the 16th International Conference on Database Theory}
}

@inproceedings{Libkin_2013, doi = {10.1145/2448496.2448513}, url = {https://doi.org/10.1145%2F2448496.2448513}, year = {2013}, month = {mar}, publisher = {{ACM}}, author = {Leonid Libkin and Wim Martens and Domagoj Vrgo{\v{c}}}, title = {Querying graph databases with {XPath}}, booktitle = {Proceedings of the 16th International Conference on Database Theory} }