@article{05540930,
title = {Minimum rank of matrices described by a graph or pattern over the rational, real and complex numbers.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {15},
year = {2008},
zbl = {1179.05070},
language = {en},
url = {http://dml.mathdoc.fr/item/05540930}
}
Berman, Avi; Friedland, Shmuel; Hogben, Leslie; Rothblum, Uriel G.; Shader, Bryan. Minimum rank of matrices described by a graph or pattern over the rational, real and complex numbers.. The Electronic Journal of Combinatorics [electronic only], Tome 15 (2008) . http://gdmltest.u-ga.fr/item/05540930/