@article{DMGT_2009_29_1_a8,
     author = {Broersma, Hajo and Marchal, Bert and Paulusma, Daniel and Salman, A.},
     title = {Backbone colorings along stars and matchings in split graphs: their span is close to the chromatic number},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {143--162},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2009_29_1_a8/}
}