1. Matching and symmetry of graphs;Hosoya;Comput. Math. Applic.,1986
2. Symmetry: Unifying Human Understanding,1986
3. Kekulé structures and their symmetry properties;Cyvin;Comput. Math. Applic.,1986
4. Symmetry: Unifying Human Understanding,1986
5. Symmetry: Unifying Human Understanding,1986