YAKUBOV, T. CONCEPTS OF PERIODIZATION OF MUSIC BY SERGEI BORTKIEWICZ: HISTORIOGRAPHY AND NEW APPROACH. Ukrainian musicology, [S. l.], v. 45, p. 49–70, 2019. DOI: 10.31318/0130-5298.2019.0.45.189971. Disponível em: http://musicology.com.ua/article/view/189971. Acesso em: 17 feb. 2026.