KOZÁK, József. Broken bone pipe from the Avar Period cemetery of Bielo Brdo. Communicationes Archaeologicae Hungariae, [S. l.], v. 1997, p. 195–204, 1997. DOI: 10.54640/CAH.1997.195. Disponível em: https://ojs.elte.hu/comarchhung/article/view/10443. Acesso em: 17 apr. 2026.