WASET
    C. Matiz C. and  N. Olarte L. and  A. Rubiano F.,  Electronic System Design for Respiratory Signal Processing.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2012, vol. 71(11). 1363 - 1366
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/98.