Топорков Олександр Миколайович (Alexander T. Research of level of psychological preparedness of 30–40 years old tourists skiers in the preparation period. SHSS [Internet]. 2015Apr.29 [cited 2024Apr.27];(2(46):201-4. Available from: https://journals.uran.ua/index.php/1991-0177/article/view/41993