Otsenka optimal'nogo psikhicheskogo napryazheniya u lyzhnikov-gonshchikov vysokoi kvalifikatsii v sorevnovatel'nom periode - Sivakov, V. I. (Teorija i Praktika fiziceskoj Kul'tury, 2001)
Keywords: cross-country skiing; sport psychology; competition; competition period; precompetition anxiety; Russia; endurance sports