Liu, K.-C., Sheard, J., Piatrikova, E., Williams, S., Parr, J., Roe, G., … Frixou, T. (2021). Comparing critical speed modelling approaches and exploring relationships with match-play variables in elite male youth soccer players. South African Journal of Sports Medicine, 33(1), 1–6. https://doi.org/10.17159/2078-516X/2021/v33i1a9738