R.  Sivakumar, Gopinath, C. S., Jayachandran, M., and Sanjeeviraja, C., ?Electrochromic device (ECD) cell characterization on electron beam evaporated MoO3 films by intercalating/deintercalating the H+ ions?, Current Applied Physics, vol. 7, no. 1, pp. 76-86, 2007.