A. Al-Rawachy, H., and H. T. Al-Saoor. “Investigation of the Electron Energy Distribution Function in Capacitively Coupled (13.56 MHz) Radio Frequency Discharge in Dry Air”. Rafidain Journal of Science, vol. 24, no. 11, Nov. 2013, pp. 82-95, doi:10.33899/rjs.2013.80284.