References
- M. Acharya, x-line sigraph of a sigraph, J. Combin. Math. Combin. Comput., 69(2009), 103–111.
- M. Behzad and G. Chartrand, Total graphs and traversability, Proc. Edinb. Math. Soc., 15(2) (1966), 117–120.
- M. Behzad and H. Radjavi, Structure of regular total graphs, J. Lond. Math. Soc., 44(1969), 433–436.
- M. Behzad and G.T. Chartrand, Line coloring of signed graphs, Elem. Math., 24(3) (1969), 49–52.
- F. Harary, Graph Theory, Addison-Wesley Publ. Comp., Reading, Massachusetts 1969.
- M.K. Gill, Contribution to some topics in graph theory and its applications, Ph.D. Thesis, Indian Institute of Technology, Bombay 1983.
- H.S. Ramane, H.B. Walikar, S.B. Rao, B.D. Acharya, P.R. Hampiholi, S.R. Jog, I. Gutman, Spectra and energies of iterated line graphs of regular graphs, Appl. Math. Lett., 18(2005), 679–682.
- D. Ray-Chaudhuri, Characterization of line graphs, J. Combin. Theory, 3(1967), 201–214.
- D.B. West, Introduction to Graph Theory, Prentice-Hall of India Pvt. Ltd. 1996.
- T. Zaslavsky, Glossary of signed and gain graphs and allied areas, II Edition, Electron. J. Combin., #DS9 (1998).
- T. Zaslavsky, Matrices in the theory of signed simple graphs, Ramanujan Math. Soc. Lect. Notes Ser., 13 (2010), 207–229.