WASET
    Ju-Hong Lee and  Yi-Lin Shieh,  Optimal Design of Two-Channel Recursive Parallelogram Quadrature Mirror Filter Banks .   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2014, vol. 91(7). 1224 - 1230
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/9998911.