@article{10_37236_958,
     author = {Zhen Wang and Zhixi Wang},
     title = {The tripartite separability of density matrices of graphs},
     journal = {The electronic journal of combinatorics},
     year = {2007},
     volume = {14},
     doi = {10.37236/958},
     zbl = {1116.81018},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/958/}
}