WASET
Mahmood, Y. , Ahmadi, A. , Karim, R. , Kumar, U. , Verma, A. , Fransson, N.. "Comparison of Frequency Converter Outages: A Case Study on the Swedish TPS System". World Academy of Science, Engineering and Technology, Open Science Index 71, International Journal of Electrical and Computer Engineering (2012), 6(11), 1289 - 1296.