@article{DMGT_2012_32_4_a10,
     author = {Pattabiraman, K. and Paulraja, P.},
     title = {Wiener and vertex {PI} indices of the strong product of graphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {749--769},
     publisher = {mathdoc},
     volume = {32},
     number = {4},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2012_32_4_a10/}
}