Kahraman Ayyildiz and  Stefan Conrad,  Video Classification by Partitioned Frequency Spectra of Repeating Movements.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2012, vol. 64(4). 445 - 450
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/13361.