@article{DMGT_2014_34_1_a3,
     author = {Zhang, Heping and Liu, Shunyi and Li, Wei},
     title = {A {Note} on the {Permanental} {Roots} of {Bipartite} {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {49--56},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2014_34_1_a3/}
}