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@article{DMGT_2004_24_3_a15, author = {Zhou, Sanming}, title = {A {Gallai-type} equality for the total domination number of a graph}, journal = {Discussiones Mathematicae. Graph Theory}, pages = {539--543}, publisher = {mathdoc}, volume = {24}, number = {3}, year = {2004}, language = {en}, url = {http://geodesic.mathdoc.fr/item/DMGT_2004_24_3_a15/} }
Zhou, Sanming. A Gallai-type equality for the total domination number of a graph. Discussiones Mathematicae. Graph Theory, Tome 24 (2004) no. 3, pp. 539-543. http://geodesic.mathdoc.fr/item/DMGT_2004_24_3_a15/