Sudipta Majumdar and  Akansha Singh,  Frequency Estimation Using Analytic Signal via Wavelet Transform.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2016, vol. 115(7). 980 - 983
    [viewed 23 October 2019]. Available from: https://publications.waset.org/pdf/10005326.