R. J. Sroka, J. K. Fleming, S. L. Sims, D. P. Coe, C. M. Springer, and D. R. Bassett, “How Much Training Do Road Racers in USA Cycling Actually Do? An Observational Study of 543 Athletes, by Racing Category and Gender”, J Sci Cycling, vol. 14, no. 1, p. 8, Sep. 2025.