IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 56, no. 11, page. 4381 - 4388, 2009-11
IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 23, no. 5, page. 2319 - 2327, 2008-09
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 53, no. 4, page. 1048 - 1054, 2006-08