@article{DMGT_2008_28_2_a9,
     author = {Li, Hong-Hai and Li, Jiong-Sheng},
     title = {An upper bound on the {Laplacian} spectral radius of the signed graphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {345--359},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2008_28_2_a9/}
}