Adler, A. and Holroyd, F. C. "Some Results on One-Dimensional Tilings." Geom. Dedicata10, 49-58, 1981.Berger, R. "The Undecidability of the Domino Problem." Mem. Amer. Math. Soc. No.66, 1-72, 1966.Culik, K. II "An Aperiodic Set of 13 Wang Tiles." Disc. Math.160, 245-251, 1996.Dutch, S. "Aperiodic Tilings." May 29, 2003. http://www.uwgb.edu/dutchs/symmetry/aperiod.htm.Grünbaum, B. and Shephard, G. C. Tilings and Patterns. New York: W. H. Freeman, 1986.Hanf, W. "Nonrecursive Tilings of the Plane. I." J. Symbolic Logic39, 283-285, 1974.Jeandel, E. and Rao, M. "An Aperiodic Set of 11 Wang Tiles." 25 Jun 2015. https://arxiv.org/abs/1506.06492.Kari, J. "A Small Aperiodic Set of Wang Tiles." Disc. Math.160, 259-264, 1996.Mozes, S. "Tilings, Substitution Systems, and Dynamical Systems Generated by Them." J. Analyse Math.53, 139-186, 1989.Myers, D. "Nonrecursive Tilings of the Plane. II." J. Symbolic Logic39, 286-294, 1974.Radin, C. Miles of Tiles. Providence, RI: Amer. Math. Soc., pp. 6-8, 1999.Robinson, R. M. "Undecidability and Nonperiodicity for Tilings of the Plane." Invent. Math.12, 177-209, 1971.Smith, D.; Myers, J. S.; Kaplan, C. S.; and Goodman-Strauss, C. "An Aperiodic Monotile." 20 Mar 2023. https://arxiv.org/abs/2303.10798.Smith, T. "Penrose Tilings and Wang Tilings." http://www.innerx.net/personal/tsmith/pwtile.html.Wang, H. "Proving Theorems by Pattern Recognition. II." Bell Systems Tech. J.40, 1-41, 1961.
瓦片，但這個數字後來被大大減少了。
