IVANOVA, Y. A synergy between gemology, mineralogy and technical sciences. Yearbook Telecommunications, [S. l.], v. 11, p. 1–10, 2024. DOI: 10.33919/YTelecomm.24.11.1. Disponível em: https://ojs.nbu.bg/index.php/YT/article/view/1145. Acesso em: 7 dec. 2025.