Bulgarian Musical Folklore in the Creativity of the Composer Ivan Spasov. Klironomy, [S. l.], n. 4, p. 75–81, 2022. DOI: 10.47451/art2022-02-01. Disponível em: https://journals.eiid.eu/index.php/kj/article/view/80. Acesso em: 31 jul. 2025.