1. Partial ordering of forests according to their characteristic polynomials;Gutman,1978
2. Graphs with greatest number of matchings;Gutman;Publ. Inst. Math. (Beograd),1980
3. Finding tricyclic graphs with maximal number of matchings—Another example of computer aided research in graph theory;Gutman;Publ. Inst. Math. (Beograd),1984
4. On the ordering of graphs with respect to their matching numbers;Gutman;Discrete Appl. Math.,1986
5. Acyclic systems with extremal Hückel π-electron energy;Gutman;Theor. Chim. Acta,1977