@article{IM_1992__107_1_143981,
     author = {Richard Kenyon},
     title = {Rigidity of planar tilings.},
     journal = {Inventiones mathematicae},
     pages = {637--652},
     publisher = {mathdoc},
     volume = {107},
     number = {1},
     year = {1992},
     zbl = {0758.52015},
     url = {http://geodesic.mathdoc.fr/item/IM_1992__107_1_143981/}
}