@article{zu236466,
           title = {The Formation and Development of Willpower and Activity of a Pianist.},
          author = {Kateryna Voznyuk and Vladyslav Kulak},
            year = {2023},
         journal = {??????? ????????? ???????? ????????? ???},
             url = {http://eprints.zu.edu.ua/36466/}
}