P. Ram Mohan, M. Vijaya Kumar, S. Rama Reddy and O.V. Raghava Reddy
International Journal of Electrical and Power Engineering 1 ( 1 ): 99 - 103 , 2007
P. Ram Mohan, M. Vijaya Kumar, S. Rama Reddy and O.V. Raghava Reddy
International Journal of Electrical and Power Engineering 1 ( 1 ): 104 - 107 , 2007