Ford, P. R., & Williams, A. M. (2017). Sport activity in childhood: Early specialization and diversification. Routledge handbook of talent identification and development in sport, 116-132.
Myer, G. D., Jayanthi, N., Difiori, J. P., Faigenbaum, A. D., Kiefer, A. W., Logerstedt, D., & Micheli, L. J. (2015). Sport specialization, part I: does early sports specialization increase negative outcomes and reduce the opportunity for success in young athletes?. Sports health, 7(5), 437-442.
Myer, G. D., Jayanthi, N., DiFiori, J. P., Faigenbaum, A. D., Kiefer, A. W., Logerstedt, D., & Micheli, L. J. (2016). Sports specialization, part II: alternative solutions to early sport specialization in youth athletes. Sports health, 8(1), 65-73
