Derived graphs of some graphs Sudhir R. Jog; Satish P. Hande; Ivan Gutman; S. Burcu Bozkurt — 2012 Kragujevac Journal of Mathematics
Equienergetic graphs Harishchandra S. Ramane; Hanumappa B. Walikar; Siddani Bhaskara Rao; B. Devadas Acharya; Prabhakar R. Hampiholi; Sudhir R. Jog; Ivan Gutman — 2004 Kragujevac Journal of Mathematics