The Roman k-domatic number of a graph
Acta Math. Sin. (Engl. Ser.) 27 (2011), 1899-1906.
BibTex references
@Article\{SV11b,
author = "Sheikholeslami, S.M. and Volkmann, Lutz",
title = "The Roman k-domatic number of a graph",
journal = "Acta Math. Sin. (Engl. Ser.)",
volume = "27",
pages = "1899-1906",
year = "2011",
}