%0 Journal Article %A Volkmann, Lutz %T Signed domination and signed domatic numbers of digraphs %J Discussiones Mathematicae. Graph Theory %D 2011 %P 415-427 %V 31 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGT_2011_31_3_a0/ %G en %F DMGT_2011_31_3_a0