“PLYOMETRIC EXERCISES AS A WAY OF DEVELOPING SPEED-STRENGHT ABILITIES OF SECONDARY SCHOOL STUDENTS AND POSSIBILITIES OF UTILIZATION IN COEDUCATIONAL LESSONS” (2014) Fiep Bulletin - online, 83(3). Available at: https://ojs.fiepbulletin.net/fiepbulletin/article/view/4639 (Accessed: 22 August 2025).