@article{ELA_2011__22__a75,
     author = {Barioli, Francesco and Fallat, Shaun M. and Mitchell, Lon H. and Narayan, Sivaram K.},
     title = {Minimum semidefinite rank of outerplanar graphs and the tree cover number},
     journal = {The electronic journal of linear algebra},
     pages = {10--21},
     publisher = {mathdoc},
     volume = {22},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2011__22__a75/}
}