TY JOUR TI Developing Volitional Qualities in Young Football Players during Training KW primary school students KW sports activities KW football KW organizations of additional education KW personality development JO Bulletin of Kemerovo State University. Series: Humanities and Social Sciences AU Dzvonik, V.P. AU Mukhanov, G.I. PY 2021 IS 2020 PB Kemerovo State University