WASET
    Yasunori Sugita and  Toshinori Yoshikawa and  Naoyuki Aikawa,  A Weighted Least Square Algorithm for Low-Delay FIR Filters with Piecewise Variable Stopbands.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2009, vol. 35(11). 1946 - 1951
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/12287.