@article{ASUO_2010_XVIII_2_a22,
     author = {
						S.M. Sheikholeslami and L. Volkmann },
     title = {
							{Signed} total {K-domination} numbers of directed graphs
						},
     journal = {Analele Universit\u{a}\c{t}ii "Ovidius" Constan\c{t}a Seria Matematic\u{a}},
     publisher = {mathdoc},
     volume = {XVIII},
     number = {2},
     year = {2010},
     url = {http://geodesic.mathdoc.fr/item/ASUO_2010_XVIII_2_a22/}
}