Doroshenko, I., A. Svatyev, V. Shamardin, B. Khorkavyy, D. Vaniuk, and E. Doroshenko. “Characteristics of the Approximate-Optimal Training Indicators of Goalkeepers in Modern Football”. Journal of Learning Theory and Methodology, vol. 5, no. 3, Dec. 2024, pp. 129-35, doi:10.17309/jltm.2024.5.3.06.