On the energy of unitary Cayley graphs. Ramaswamy, H.N.; Veena, C.R. — 2009 The Electronic Journal of Combinatorics [electronic only]
A note on strongly multiplicative graphs Chandrashekar Adiga; H.N. Ramaswamy; D.D. Somashekara — 2004 Discussiones Mathematicae Graph Theory In this note we give an upper bound for λ(n), the maximum number of edges in a strongly multiplicative graph of order n, which is sharper than the upper bound obtained by Beineke and Hegde [1].