1. Attila, J. (1994), of the University of Szeged, Hungary, conceived this generalization, as described by P.V. Kadhikar et al. (1995).
2. Highly discriminating distance-based topological index.;Balaban;Chem. Phys. Lett.,1982
3. Reverse Wiener indices.;Balaban;Croat. Chem. Acta.,2000
4. On the three-dimensional Wiener number.;Bogdanov;J. Math. Chem.,1989
5. The Aromatic Sextet.;Clar,1972