Bounds of the 2-domination number of graphs
Util. Math. 71 (2006), 209--216.
BibTex references
@Article\{BCV06,
author = "Blidia, Mostafa and Chellali, Mustapha and Volkmann, Lutz",
title = "Bounds of the 2-domination number of graphs",
journal = "Util. Math.",
volume = "71",
pages = "209--216",
year = "2006",
}