@article{ELA_2007__16__a35,
     author = {Cavers, Michael S. and Vander Meulen, Kevin N.},
     title = {Inertially arbitrary nonzero patterns of order 4},
     journal = {The electronic journal of linear algebra},
     pages = {30--43},
     publisher = {mathdoc},
     volume = {16},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2007__16__a35/}
}