IEEE Transactions on Power Delivery
IEEE Transactions on Power Delivery > 2008 > 23 > 2 > 676 - 685
IEEE Transactions on Power Delivery > 2009 > 24 > 1 > 319 - 327
IEEE Transactions on Power Delivery > 2010 > 25 > 4 > 2299 - 2307
IEEE Transactions on Power Delivery > 2011 > 26 > 2 > 1212 - 1220