Following the Black Spiral: Old Voices, New Life (Towards the History of the Early Commercial Gramophone Records in Bulgaria). MUZIKOLOGIJA-MUSICOLOGY, Belgrade, Serbia, n. 32, p. 19–40, 2022. Disponível em: https://muzikologija-musicology.com/index.php/MM/article/view/23. Acesso em: 27 nov. 2025.