Formation of National Teams Taking into Account the Factors of Football Players’ Club Migration by Eduard Sobol, Andrii Svatyev, Igor Doroshenko, Svitlana Kokareva, Nataliya Korzh, Eduard Doroshenko

“…To determine the parameters of club migration of highly skilled legionary footballers when forming national teams for participation in official international competitions. …”
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Career trajectories, transition rates, and birthdate distributions: the rocky road from youth to senior level in men's European football by Paolo Riccardo Brustio, Paolo Riccardo Brustio, Alexander B. T. McAuley, Alexandru Nicolae Ungureanu, Adam Leigh Kelly

“…This study aimed to assess youth-to-senior transition rates, quantify the magnitude of relative age effect (RAEs), and evaluate how RAEs affect these transitions in 9,527 men's national football players of England, France, Germany, Italy, and Spain. …”
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Relative Age Effect in Elite German Soccer: Influence of Gender and Competition Level by Martin Götze, Martin Götze, Matthias W. Hoppe

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