Ali H. Ahmed, D., D. Majid K. Alkhatat, and E. Ahmed A. J. “H∞/µ - SYNTHESIS for CUK CONVERTOR CIRCUIT CONTROLLER”. Al-Rafidain Engineering Journal (AREJ), vol. 14, no. 4, Dec. 2006, pp. 99-117, doi:10.33899/rengj.2006.45363.