BELICHENKO, O.; LADZHUN, J. COMPLEX GEMOLOGICAL RESEARCH OF NEW TYPES OF TREATED AMBER. Visnyk of Taras Shevchenko National University of Kyiv. Geology, [S. l.], v. 4, n. 75, p. 30–34, 2025. DOI: 10.17721/1728-2713.75.04. Disponível em: https://geology.bulletin.knu.ua/article/view/1493. Acesso em: 15 feb. 2026.