TY - JOUR AU - Avi Berman AU - Shmuel Friedland AU - Leslie Hogben AU - Uriel G. Rothblum AU - Bryan Shader TI - Minimum rank of matrices described by a graph or pattern over the rational, real and complex numbers JO - The electronic journal of combinatorics PY - 2008 VL - 15 UR - http://geodesic.mathdoc.fr/articles/10.37236/749/ DO - 10.37236/749 ID - 10_37236_749 ER -