@article{DCG_1992__8_1_131207,
     author = {G.C. Shephard and R. Ammann and B Gr\"unbaum},
     title = {Aperiodic {Tiles.}},
     journal = {Discrete & computational geometry},
     pages = {1--26},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1992},
     zbl = {0758.52013},
     url = {http://geodesic.mathdoc.fr/item/DCG_1992__8_1_131207/}
}