The Roman (k,k)-domatic number of a graph
Ann. Math. Inform. 38 (2011), 45-57.
BibTex references
@Article\{KSV11,
author = "Kazemi, A.P. and Sheikholeslami, S.M. and Volkmann, Lutz",
title = "The Roman (k,k)-domatic number of a graph",
journal = "Ann. Math. Inform.",
volume = "38",
pages = "45-57",
year = "2011",
}