@article{10_37236_749,
     author = {Avi Berman and Shmuel Friedland and Leslie Hogben and Uriel G. Rothblum and Bryan Shader},
     title = {Minimum rank of matrices described by a graph or pattern over the rational, real and complex numbers},
     journal = {The electronic journal of combinatorics},
     year = {2008},
     volume = {15},
     doi = {10.37236/749},
     zbl = {1179.05070},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/749/}
}