@article{DMGT_2012_32_3_a6,
     author = {Sheikholeslami, Seyed and Volkmann, Lutz},
     title = {The total {k}-domatic number of digraphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {461--471},
     publisher = {mathdoc},
     volume = {32},
     number = {3},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2012_32_3_a6/}
}