@article{CMJ_2003__53_4_a11,
     author = {Gao, Yubin and Shao, Yanling},
     title = {The inertia set of nonnegative symmetric sign pattern with zero diagonal},
     journal = {Czechoslovak Mathematical Journal},
     pages = {925--934},
     publisher = {mathdoc},
     volume = {53},
     number = {4},
     year = {2003},
     mrnumber = {2018840},
     zbl = {1080.15501},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2003__53_4_a11/}
}