@article{Libkin:2018:TNA:3194314.3154385,
    Address = {New York, NY, USA},
    Author = {Libkin, Leonid and Reutter, Juan L. and Soto, Adri\'{a}n and Vrgo\v{c}, Domagoj},
    File = {a5-libkin (0) - a - a - r.pdf},
    ISSN = {0362-5915},
    Journal = {ACM Trans. Database Syst.},
    Keywords = {Query evaluation, RDF, Triple Algebra},
    Month = {March},
    Number = {1},
    Pages = {5:1--5:46},
    Publisher = {ACM},
    Title = {TriAL: A Navigational Algebra for RDF Triplestores},
    URL = {http://doi.acm.org/10.1145/3154385},
    Volume = {43},
    Year = {2018},
    acmid = {3154385},
    articleno = {5},
    bdsk-url-1 = {http://doi.acm.org/10.1145/3154385},
    bdsk-url-2 = {https://doi.org/10.1145/3154385},
    date-added = {2018-10-19 11:42:08 +0000},
    date-modified = {2018-10-19 11:42:08 +0000},
    file-2 = {tripalg (0) - a - a - r.pdf},
    issue_date = {April 2018},
    numpages = {46},
    doi = {10.1145/3154385}
}

@article{Libkin:2018:TNA:3194314.3154385, Address = {New York, NY, USA}, Author = {Libkin, Leonid and Reutter, Juan L. and Soto, Adri\'{a}n and Vrgo\v{c}, Domagoj}, File = {a5-libkin (0) - a - a - r.pdf}, ISSN = {0362-5915}, Journal = {ACM Trans. Database Syst.}, Keywords = {Query evaluation, RDF, Triple Algebra}, Month = {March}, Number = {1}, Pages = {5:1--5:46}, Publisher = {ACM}, Title = {TriAL: A Navigational Algebra for RDF Triplestores}, URL = {http://doi.acm.org/10.1145/3154385}, Volume = {43}, Year = {2018}, acmid = {3154385}, articleno = {5}, bdsk-url-1 = {http://doi.acm.org/10.1145/3154385}, bdsk-url-2 = {https://doi.org/10.1145/3154385}, date-added = {2018-10-19 11:42:08 +0000}, date-modified = {2018-10-19 11:42:08 +0000}, file-2 = {tripalg (0) - a - a - r.pdf}, issue_date = {April 2018}, numpages = {46}, doi = {10.1145/3154385} }