Privalov A.V., Nifontov M.Yu., Mukhamedzyanov R.R., and Dmitriev I.V. “A Methodical Approach to the Pre-Match Training of Goalkeepers in Beach Soccer”. Theory and Practice of Physical Culture, no. 5 (July 30, 2025). Accessed December 5, 2025. http://tpfk.ru/index.php/TPPC/article/view/1353.