@article{10_2298_BMAT0631001G,
     author = {I. Gutman and S. Zhang},
     title = {Graph connectivity and {Wiener} index},
     journal = {Bulletin de l'Acad\'emie serbe des sciences. Classe des sciences math\'ematiques et naturelles},
     pages = {1 },
     publisher = {mathdoc},
     volume = {31},
     year = {2006},
     doi = {10.2298/BMAT0631001G},
     zbl = {1150.05327},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/BMAT0631001G/}
}