TY - JOUR AU - Bašić, Bojan TI - The Heesch number for multiple prototiles is unbounded JO - Comptes Rendus. Mathématique PY - 2015 SP - 665 EP - 669 VL - 353 IS - 8 PB - Elsevier UR - http://archive.numdam.org/articles/10.1016/j.crma.2015.05.002/ DO - 10.1016/j.crma.2015.05.002 LA - en ID - CRMATH_2015__353_8_665_0 ER -