Roman {3}-domination (double Italian domination)
Discrete Appl. Math. 283 (2020), 555--564.
BibTex references
@Article\{MV20,
author = "Mojdeh, Doost Ali and Volkmann, Lutz",
title = "Roman {3}-domination (double Italian domination)",
journal = "Discrete Appl. Math.",
volume = "283",
pages = "555--564",
year = "2020",
}