Changing and unchanging the Roman domination number of a graph
Util. Math. 89 (2012), 79-95.
BibTex references
@Article\{VJ12,
author = "Volkmann, Lutz and Jafari Rad, N.",
title = "Changing and unchanging the Roman domination number of a graph",
journal = "Util. Math.",
volume = "89",
pages = "79-95",
year = "2012",
}