@article{10_37236_10275,
     author = {Changxin Ding},
     title = {The rotor-routing torsor and the {Bernardi} torsor disagree for every non-planar ribbon graph},
     journal = {The electronic journal of combinatorics},
     year = {2021},
     volume = {28},
     number = {4},
     doi = {10.37236/10275},
     zbl = {1476.05024},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/10275/}
}