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   5. An Efficient Noise Cancellation Technique to remove noise from the ECG signal using Normalized Signed Regressor LMS algorithm Mohammad Zia Ur Rahman Rafi Ahamed Shaik D V Rama Koti Reddy 978-0-7695-3885- 3/09 $26.00 © 2009 IEEE
   6. Cancellation of Artifacts in ECG Signals using Sign based Normalized Adaptive Filtering Technique Mohammad Zia Ur Rahman Rafi Ahamed Shaik D V Rama Koti Reddy 978-1- 4244-4683-4/09/$25.00 ©2009 IEEE