| Issue Date | Title | Author(s) | Type | Мp-cat. |
| 2001 | On statistics of graph energy | Graovac, Ante; Gutman, Ivan   ; John, PE; Vidovic, Dusica; Vlah, I | Article | |
| 2001 | On molecular graphs and digraphs of annulenes and their spectra | Gutman, Ivan ; Plath, PJ | Article | |
| 2001 | On walks in molecular graphs | Gutman, Ivan ; Rucker, C; Rucker, G | Article | |
| 2001 | Cyclic conjugation in terminally bent and branched phenylenes | Gutman, Ivan ; Tomovic, Zeljko | Article | |
| 2001 | Quest for molecular graphs with maximal energy: A computer experiment | Gutman, Ivan ; Vidovic, Dusica | Article | |
| 2001 | Binary coding of Kekule structures of catacondensed benzenoid hydrocarbons | Klavzar, Sandi; Vesel, A; Zigert, P; Gutman, Ivan | Article | |
| 2001 | Hyperenergetic line graphs | Hou, YP; Gutman, Ivan | Article | |
| 2001 | On a class of approximate formulas for total pi-electron energy of benzenoid hydrocarbons | Gutman, Ivan ; Soldatovic, Tanja V | Article | |
| 2001 | Matchings in starlike trees | Gutman, Ivan ; Araujo, O; Rada, Juan | Article | |
| 2001 | On the use of iterated line graphs in quantitative structure-property studies | Gutman, Ivan ; Tomovic, Zeljko; Mishra, BK; Kuanar, M | Article | |
| 2001 | Randic index of benzenoid systems and phenylenes | Rada, Juan; Araujo, O; Gutman, Ivan | Article | |
| 2001 | On Hosoya polynomials of benzenoid graphs | Gutman, Ivan ; Klavzar, Sandi; Petkovsek, M; Zigert, P | Article | |
| 2001 | Bipartite unicyclic graphs with greatest energy | Gutman, Ivan ; Hou, YP | Article | |
| 2001 | On the Klemm model for bistability of mixtures of interacting enantiomers | Gutman, Ivan | Article | |
| 2001 | A concealed property of total pi-electron energy | Gutman, Ivan ; Nikolic, Ana; Tomovic, Zeljko | Article | |
| 2001 | Approximating the total π-electron energy by means of spectral moments | Ivan Gutman ; Tanja Soldatović ; Ante Graovac; Slavko Vuković | Article | |
| 2001 | Determination of unconjugated carbon sites in benzenoid derivatives | Morikawa, T; Gutman, Ivan | Article | |
| 2001 | On the nullity of line graphs of trees | Gutman, Ivan ; Sciriha, I | Article | |
| 2001 | Choosing the exponent in the definition of the connectivity index | Gutman, Ivan ; Lepovic, Mirko V | Article | |
| 2001 | The energy of a graph and its size dependence. An improved Monte Carlo approach | Fripertinger, H; Gutman, Ivan ; Kerber, A; Kohnert, A; Vidovic, Dusica | Article | |
Gutman, Ivan
