| Issue Date | Title | Author(s) | Type | Мp-cat. |
| 2000 | On permutations in bipartite graphs | Gutman, Ivan  | Article | |
| 2000 | No Huckel graph is hyperenergetic | Gutman, Ivan ; Hou, Y; Walikar, HB; Ramane, Harishchandra S; Hampiholi, PR | Article | |
| 2000 | On the application of line graphs in quantitative structure-property studies | Gutman, Ivan ; Tomovic, Zeljko | Article | |
| 2000 | On Graphs with Extremal Connectivity Indices | Gutman, Ivan ; Pavlović, Ljiljana; Miljković, Olga | Article | |
| 2000 | On Canonical Graphs and the Laplacian Characteristic Polynomial | Lepović, Mirko; Gutman, Ivan ; Petrović, Miroslav | Article | |
| 2000 | Molecules with smallest connectivity indices | Gutman, Ivan ; Miljkovic, Olga | Article | |
| 2000 | The multiplicative version of the Wiener index | Gutman, Ivan ; Linert, Wolfgang; Lukovits, I; Tomovic, Zeljko | Article | |
| 2000 | Elementary Proof of the Reality of the Zeros of Beta-Polynomials of Complete Graphs | Li, Xueliang; Gutman, Ivan  | Article | |
| 2000 | On the relative stability of tetraoxo-bisanthrenes related to the radical anions of hypericin | Gutman, I. ; Marković, Zoran ; Engelbrecht, J.P. | Article | |
| 2000 | Bounds for the Randic connectivity index | Gutman, Ivan ; Araujo, O; Morales, DA | Article | |
| 2000 | More on the line graph model for predicting physico-chemical properties of alkanes | Gutman, Ivan ; Tomovic, Zeljko | Article | |
| 2000 | The number of high-energy bands in the photoelectron spectrum of alkanes | Merris, R; Gutman, Ivan  | Article | |
| 2000 | Estimating and approximating the total π-electron energy of benzenoid hydrocarbons | Gutman, I. ; Koolen, J.H.; Moulton, V.; Parac, M.; Soldatović, T. ; Vidović, D. | Article | |
| 2000 | Estimating the connectivity index of a saturated hydrocarbon | Gutman, Ivan ; Araujo, O; Morales, DA | Article | |
| 2000 | Improving the McClelland inequality for total pi-electron energy | Koolen, JH; Moulton, V; Gutman, Ivan  | Article | |
| 2000 | Average distances in square-cell configurations | Gutman, Ivan ; Klavzar, Sandi; Rajapakse, A | Article | |
| 2000 | Cyclic conjugation in total resonant sextet benzenoid hydrocarbons | Gutman, Ivan ; Ivanov-Petrovic, Vesna; Dias, JR | Article | |
| 2000 | A stochastic approach to the Turker angles | Gutman, Ivan  | Article | |
| 2000 | Topological studies of dioxo derivatives of benzenoid hydrocarbons: Number of Kekule structures of dioxo derivatives of prolate rectangles and a connection to hypericin | Gutman, Ivan  | Article | |
| 2000 | Calculating the hyper-Wiener index of benzenoid hydrocarbons | Zigert, P; Klavzar, Sandi; Gutman, Ivan  | Article | |