YAKUBOV, T. The fate of Sergei Bortkiewicz’s manuscripts: lost and found. Ukrainian musicology, [S. l.], v. 43, p. 65–80, 2017. DOI: 10.31318/0130-5298.2017.43.0.131926. Disponível em: https://musicology.com.ua/article/view/131926. Acesso em: 26 feb. 2026.