@Article{,
author = { Vesna Andova and Darko Dimitrov and Ji\v{r}i Fink and Riste \v{S}krekovski },
title = { Bounds on Gutman Index },
journal = { MATCH Communications in Mathematical and in Computer Chemistry },
year = { 2012 },
volume = { 67 },
number = { 2 },
pages = { 515 -524 },
}
