Odd-vertex-degree trees maximizing Wiener index Boris Furtula (2013) Kragujevac Journal of Mathematics
On the upper bounds for the first Zagreb index Aleksandar Ilić, Milovan Ilić, Bolian Liu (2011) Kragujevac Journal of Mathematics
One-two descriptor of graphs K. CH. Das, I. Gutman, D. Vukičević (2011) Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques