@article{CMJ_2008__58_4_a26,
     author = {Liu, Jianping and Liu, BoLian},
     title = {The maximum clique and the signless {Laplacian} eigenvalues},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1233--1240},
     publisher = {mathdoc},
     volume = {58},
     number = {4},
     year = {2008},
     mrnumber = {2471179},
     zbl = {1174.05079},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2008__58_4_a26/}
}