IEEE Transactions on Power Delivery
IEEE Transactions on Power Delivery > 2007 > 22 > 1 > 423 - 432
IEEE Transactions on Power Delivery > 2008 > 23 > 1 > 319 - 327
IEEE Transactions on Power Delivery > 2010 > 25 > 4 > 2676 - 2683
IEEE Transactions on Power Delivery > 2011 > 26 > 1 > 258 - 267
IEEE Transactions on Power Delivery > 2011 > 26 > 1 > 250 - 257