@article{Kenyon_1993,
    doi = {10.1007/bf01232432},
    url = {https://doi.org/10.1007%2Fbf01232432},
    year = {1993},
    month = {dec},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {112},
    number = {1},
    pages = {223--223},
    author = {Richard Kenyon},
    title = {Rigidity of planar tilings},
    journal = {Inventiones Mathematicae}
}

@article{Kenyon_1993, doi = {10.1007/bf01232432}, url = {https://doi.org/10.1007%2Fbf01232432}, year = {1993}, month = {dec}, publisher = {Springer Science and Business Media {LLC}}, volume = {112}, number = {1}, pages = {223--223}, author = {Richard Kenyon}, title = {Rigidity of planar tilings}, journal = {Inventiones Mathematicae} }