Evolving networks with bimodal degree distribution Abhijeet R. Sonawane, A. Bhattacharyay, M.S. Santhanam and G. Ambika Eur. Phys. J. B, 85 4 (2012) 118 Published online: 11 April 2012 DOI: 10.1140/epjb/e2012-30074-6