TY - JOUR AU - Pedro Pablo Pérez Velasco AU - Juan de Lara TI - A reformulation of matrix graph grammars with Boolean complexes JO - The electronic journal of combinatorics PY - 2009 VL - 16 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.37236/162/ DO - 10.37236/162 ID - 10_37236_162 ER -