Pinto, V. P., J. M. V. Teles, and L. M. R. da C. Massuça. “Reference Ages of Medallists at the Portuguese Athletics Championships: A 30-Year Study (1990-2019)”. Journal of Physical Education , Vol. 34, no. 1, Feb. 2024, p. e-3454, doi:10.4025/jphyseduc.v34i1.3454.