References
- Ahangar, H. A., Chellali, M., Sheikholeslami, S. M. (2017). On the double Roman domination in graphs. Discrete Appl. Math. 232: 1–7.
- Azvin, F., Jafari Rad, N. (2021). Bounds on the double Italian domination number of a graph. Discuss. Math. Graph Theory.
- Azvin, F., Jafari Rad, N., Volkmann, L. (2021). Bounds on the outer-independent double Italian domination number. Commun. Comb. Optim. 6(1): 123–136.
- Banerjeea, S., Henning, M. A., Pradhan, D. (2021). Perfect Italian domination in cographs. Appl. Math. Comput. 391: 125703.
- Beeler, R. A., Haynes, T. W., Hedetniemi, S. T. (2016). Double Roman domination. Discrete Appl. Math. 211: 23–29.
- Chellali, M., Haynes, T. W., Hedetniemi, S. T., McRaee, A. A. (2016). Roman {2}-domination. Discrete Appl. Math. 204: 22–28.
- Cockayne, E. J., Dreyer, P. A., Hedetniemi, S. M., Hedetniemi, S. T. (2004). Roman domination in graphs. Discrete Math. 278: 11–22.
- Darkooti, M., Alhevaz, A., Rahimi, S., Rahbani, H. (2019). On perfect Roman domination number in trees: complexity and bounds. J. Comb. Optim. 38: 712–720.
- Egunjobi, A. T., (2019). Perfect double Roman domination of trees. MSc Electronic theses and dissertations. East Tennessee State University, USA. https://dc.etsu.edu/etd/3576
- Egunjobi, A. T., Haynes, T. W. (2020). Perfect double Roman domination of trees. Discrete Appl. Math. 284(30): 71–85.
- Hao, G., Volkmann, L., Mojdeh, D. A. (2020). Total double Roman domination in graphs. Commun. Comb. Optim. 5(1): 27–39.
- Haynes, T. W., Hedetniemi, S. T., Slater, P. J. (1998). Fundamentals of Domination in Graphs. New York: Marcel Dekker, Inc.
- Haynes, T. W., Henning, M. A. (2019). Perfect Italian domination in trees. Discrete Appl. Math. 260: 164–177.
- Henning, M. A., Klostermeyer, W. F. 2017. Italian domination in trees. Discrete Appl. Math. 217: 557–564.
- Henning, M. A., Klostermeyer, W. F., MacGillivray, G. (2018) Perfect Roman domination in trees. Discrete Appl. Math. 236: 235–245.
- Klostermeyer, W. F. (2015). A taxonomy of perfect domination. J. Discrete Math. Sci. Cryptogr. 18: 105–116.
- Mojdeh, D. A., Mansouri, Zh. (2020). On the independent double Roman domination in graphs. Bull. Iran. Math. Soc. 46: 905–915.
- Mojdeh, D. A., Volkmann, L. (2020). Roman {3}-domination (double Italian domination). Discrete Appl. Math. 283: 555–564.
- Paleta, L. M., Jamil, F. P. (2020). More on perfect roman domination in graphs. Eur. J. Pure Appl. Math. 13(3): 529–548.
- Shao, Z., Mojdeh, D. A., Volkmann, L. (2020). Total Roman {3}-domination in graphs. Symmetry 12: 268.
- Stewart, I. (1999). Defend the Roman Empire!. Sci. Am. 281(6):136–139.
- Varghese, J., Lakshmanan, A. (2019). Perfect Italian domination number of graphs. arXiv. 1910.12260v1 [math.CO]. 27.
- West, D. B. (2001). Introduction to Graph Theory. 2nd ed. Upper Saddle River, NJ: Prentice-Hall.