Taylor J. Canfield and  Kathe A. Gabel,  Blood Lactate, Heart Rate, and Rating of Perceived Exertion in Collegiate Sprint, Middle Distance, and Long Distance Runners after 400 and 1600 Meter Runs.   journal   = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2013, vol. 80(8). 477 - 480
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/16215.