WASET
    Rongguo Yan and  Guozheng Yan and  Banghua Yang,  Fractal Analysis on Human Colonic Pressure Activities based on the Box-counting Method.   journal   = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2007, vol. 11(11). 595 - 598
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/8897.