Maturity-associated variation in sport-specific skills of youth soccer players aged 13-15 years - Malina, R. M.; Cumming, S. P.; Kontos, A. P.; Eisenmann, J. C.; Ribeiro, B.; Aroso, J. (Journal of Sports Sciences, 2005)
Keywords: soccer; biological age; skill; age; USA; sport games; biological and medical sciences