@inproceedings{Lichter_2019,
    doi = {10.1109/lics.2019.8785694},
    url = {https://doi.org/10.1109%2Flics.2019.8785694},
    year = {2019},
    month = {jun},
    publisher = {{IEEE}},
    author = {Moritz Lichter and Ilia Ponomarenko and Pascal Schweitzer},
    title = {Walk refinement, walk logic, and the iteration number of the Weisfeiler-Leman algorithm},
    booktitle = {2019 34th Annual {ACM}/{IEEE} Symposium on Logic in Computer Science ({LICS})}
}

@inproceedings{Lichter_2019, doi = {10.1109/lics.2019.8785694}, url = {https://doi.org/10.1109%2Flics.2019.8785694}, year = {2019}, month = {jun}, publisher = {{IEEE}}, author = {Moritz Lichter and Ilia Ponomarenko and Pascal Schweitzer}, title = {Walk refinement, walk logic, and the iteration number of the Weisfeiler-Leman algorithm}, booktitle = {2019 34th Annual {ACM}/{IEEE} Symposium on Logic in Computer Science ({LICS})} }