%0 Journal Article %A Zhou, Sanming %T A Gallai-type equality for the total domination number of a graph %J Discussiones Mathematicae. Graph Theory %D 2004 %P 539-543 %V 24 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGT_2004_24_3_a15/ %G en %F DMGT_2004_24_3_a15