@article{DMGT_2022_42_3_a19,
     author = {Nazari-Moghaddam, Sakineh and Chellali, Mustapha},
     title = {A {New} {Upper} {Bound} for the {Perfect} {Italian} {Domination} {Number} of a {Tree}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {1005--1022},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2022_42_3_a19/}
}