@article{10.1145/3333003,
    Address = {New York, NY, USA},
    Author = {Kiefer, Sandra and Ponomarenko, Ilia and Schweitzer, Pascal},
    ISSN = {0004-5411},
    Journal = {J. ACM},
    Keywords = {Weisfeiler--Leman algorithm, isomorphism testing, First-order logic with counting, planar graphs},
    Month = {November},
    Number = {6},
    Publisher = {Association for Computing Machinery},
    Title = {The Weisfeiler--Leman Dimension of Planar Graphs Is at Most 3},
    URL = {https://doi.org/10.1145/3333003},
    Volume = {66},
    Year = {2019},
    articleno = {Article 44},
    bdsk-url-1 = {https://doi.org/10.1145/3333003},
    date-added = {2020-02-06 13:01:33 +0100},
    date-modified = {2020-02-06 13:01:33 +0100},
    issue_date = {December 2019},
    numpages = {31},
    doi = {10.1145/3333003}
}

@article{10.1145/3333003, Address = {New York, NY, USA}, Author = {Kiefer, Sandra and Ponomarenko, Ilia and Schweitzer, Pascal}, ISSN = {0004-5411}, Journal = {J. ACM}, Keywords = {Weisfeiler--Leman algorithm, isomorphism testing, First-order logic with counting, planar graphs}, Month = {November}, Number = {6}, Publisher = {Association for Computing Machinery}, Title = {The Weisfeiler--Leman Dimension of Planar Graphs Is at Most 3}, URL = {https://doi.org/10.1145/3333003}, Volume = {66}, Year = {2019}, articleno = {Article 44}, bdsk-url-1 = {https://doi.org/10.1145/3333003}, date-added = {2020-02-06 13:01:33 +0100}, date-modified = {2020-02-06 13:01:33 +0100}, issue_date = {December 2019}, numpages = {31}, doi = {10.1145/3333003} }