@article{DMGT_2022_42_3_a15,
     author = {Ahangar, H. Abdollahzadeh and Chellali, M. and Sheikholeslami, S.M. and Valenzuela-Tripodoro, J.C.},
     title = {Total {Roman} {{2}-Dominating} {Functions} in {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {937--958},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2022_42_3_a15/}
}