IVANOV, Georgi. STRUCTURAL FEATURES AND INTERACTIONS BETWEEN THE INDICATORS CHARACTERISING THE PHYSICAL AND THE TECHNICAL QUALITIES OF THE 12-14 YEARS OLD FOOTBALL PLAYERS PLAYING ON DIFFERENT GAME POSITIONS. KNOWLEDGE - International Journal , [S. l.], v. 49, n. 6, p. 1317–1322, 2021. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/4506. Acesso em: 28 sep. 2026.