Anatolievna, M. E., Vera Alexandrovna, O., Vera Petrovna, T., Alexandr Petrovich, T., & Smirnova, M. A. (2019). Concert repertoire as a precondition for performance competence formation of music educator. OpciĆ³n, 34(1), 249-274. Recuperado a partir de https://www.produccioncientificaluz.org/index.php/opcion/article/view/24130