GADZHEV, Milen; IVANOV, Danail. AGE-RELATED DIFFERENCES IN PHYSICAL AND TECHNICAL PERFORMANCE: A CROSS-SECTIONAL ANALYSIS OF ELITE BULGARIAN YOUTH FOOTBALL PLAYERS (U12–U14). KNOWLEDGE - International Journal , [S. l.], v. 70, n. 3, p. 305–309, 2025. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/7575. Acesso em: 25 aug. 2026.