References

THE GENERAL CONNECTIVITY INDICES OF POLYCYCLIC AROMATIC HYDROCARBONS


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[2] I. Gutman and N. Trinajstic, Graph theory and molecular orbitals: Total -electron energy of alternant hydrocarbons, Chemical Physics Letters 17(4) (1972), 535-538.
DOI: https://doi.org/10.1016/0009-2614(72)85099-1

[3] B. Bollobás and P. Erdös, Graphs with extremal weights, Ars Combinatorial 50 (1998), 225-233.