Prevalence of relative age effect in Russian soccer: The role of chronological age and performance - Bezuglov, E. N.; Nikolaidis, P. T.; Khaitin, V.; Usmanova, E.; Luibushkina, A.; Repetiuk, A.; Waskiewicz, Z.; Gerasimuk, D.; Rosemann, T.; Knechtle, B. (International Journal of Environmental Research and Public Health, 2019)