@article{Freydenberger_2013,
    doi = {10.1016/j.jcss.2013.01.008},
    url = {https://doi.org/10.1016%2Fj.jcss.2013.01.008},
    year = {2013},
    month = {sep},
    publisher = {Elsevier {BV}},
    volume = {79},
    number = {6},
    pages = {892--909},
    author = {Dominik D. Freydenberger and Nicole Schweikardt},
    title = {Expressiveness and static analysis of extended conjunctive regular path queries},
    journal = {Journal of Computer and System Sciences}
}

@article{Freydenberger_2013, doi = {10.1016/j.jcss.2013.01.008}, url = {https://doi.org/10.1016%2Fj.jcss.2013.01.008}, year = {2013}, month = {sep}, publisher = {Elsevier {BV}}, volume = {79}, number = {6}, pages = {892--909}, author = {Dominik D. Freydenberger and Nicole Schweikardt}, title = {Expressiveness and static analysis of extended conjunctive regular path queries}, journal = {Journal of Computer and System Sciences} }