@article{KJM_2018_42_1_a2,
     author = {Yaping Mao},
     title = {Steiner {Harary} {Index}},
     journal = {Kragujevac Journal of Mathematics},
     pages = {29 },
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2018_42_1_a2/}
}