IEEE Transactions on Power Delivery
IEEE Transactions on Power Delivery > 2008 > 23 > 2 > 1262 - 1263
IEEE Transactions on Power Delivery > 2008 > 23 > 4 > 2488 - 2495
IEEE Transactions on Power Delivery > 2009 > 24 > 4 > 2232 - 2239
IEEE Transactions on Power Delivery > 2011 > 26 > 2 > 714 - 724