1. Mean distance of line graphs;Buckley;Congr. Numer.,1981
2. Distance of iterated line graphs;Dobrynin,1998
3. Wiener index for trees: theory and applications;Dobrynin;Acta Appl. Math.,2001
4. Bicyclic graphs and its line graphs with the same Wiener index;Dobrynin;Diskretn. Analiz Issled. Oper. Ser. 2.,1997
5. Wiener index of hexagonal systems;Dobrynin;Acta Appl. Math.,2002