WASET
    A. Kumar and  G. K. Singh and  R. S. Anand,  Near Perfect Reconstruction Quadrature Mirror Filter.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2008, vol. 13(1). 25 - 28
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/4118.