Mitsuji Muneyasu Osamu Hisayasu Kensaku Fujii Takao Hinamoto An Active Noise Control System Based on Simultaneous Equations Method without Auxiliary Filters. 960-968 2006 89-A IEICE Transactions 4 http://dx.doi.org/10.1093/ietfec/e89-a.4.960 db/journals/ieicet/ieicet89a.html#MuneyasuHFH06