00645naa#a2200181#i#450# EN\\bibl\41821 20240503034649.5 2542-1840 20201231b2020####ek#y0engy0150####ca RU Developing Volitional Qualities in Young Football Players during Training Journal article Kemerovo Kemerovo State University 2020 8 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Dzvonik Veronika Petrovna Mukhanov Georgy Ivanovich jcenter.kemsu.ru