en Dolbilin, Nikolai; Schulte, Egon (iunie 2004). „The local theorem for monotypic tilings”. Electronic Journal of Combinatorics. 11 (2). Research Paper 7. doi:10.37236/1864. MR2120102.
en Dolbilin, Nikolai; Schulte, Egon (iunie 2004). „The local theorem for monotypic tilings”. Electronic Journal of Combinatorics. 11 (2). Research Paper 7. doi:10.37236/1864. MR2120102.