Bounds on the signed Roman k-domination number of a digraph
Discuss. Math. Graph Theory, 39 (2019), 67--79.
BibTex references
@Article\{HCV19,
author = "Hao, Guoliang and Chen, Xiaodan and Volkmann, Lutz",
title = "Bounds on the signed Roman k-domination number of a digraph",
journal = "Discuss. Math. Graph Theory,",
volume = "39",
pages = "67--79",
year = "2019",
}