1. Some remarks on domination;Archdeacon;J Graph Theory,2004
2. Small transversals in hypergraphs;Chvátal;Combinatorica,1992
3. Total domination in graphs;Cockayne;Networks,1980
4. Total domination in graphs with minimum degree three;Favaron;J Graph Theory,2000
5. T. W.Haynes, S. T.Hedetniemi, and P. J.Slater (Editors), Fundamentals of Domination in Graphs, Marcel Dekker, Inc., New York, 1998.