@article{DMGT_2015_35_1_a1,
     author = {Pattabiraman, K. and Paulraja, P.},
     title = {Harary {Index} of {Product} {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {17--33},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2015_35_1_a1/}
}