@article{DMGT_2016_36_4_a14,
     author = {Xi, Weige and Wang, Ligong},
     title = {Sharp {Upper} {Bounds} on the {Signless} {Laplacian} {Spectral} {Radius} of {Strongly} {Connected} {Digraphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {977--988},
     publisher = {mathdoc},
     volume = {36},
     number = {4},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2016_36_4_a14/}
}