@article{DMGT_2018_38_1_a1,
     author = {Shekarriz, Mohammad Hadi and Mirzavaziri, Madjid and Mirzavaziri, Kamyar},
     title = {A {Characterization} for {2-Self-Centered} {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {27--37},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2018_38_1_a1/}
}