%0 Journal Article %A Shariefuddin Pirzada %T On imbalances in digraphs %J Kragujevac Journal of Mathematics %D 2008 %P 143 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2008_31_a11/ %G en %F KJM_2008_31_a11