@article{ELA_2009__18__a25,
     author = {Dealba, Luz M. and Grout, Jason and Hogben, Leslie and Mikkelson, Rana and Rasmussen, Kaela},
     title = {Universally optimal matrices and field independence of the minimum rank of a graph},
     journal = {The electronic journal of linear algebra},
     pages = {403--419},
     publisher = {mathdoc},
     volume = {18},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2009__18__a25/}
}