JUSTIFICATION OF OPTIONS FOR THE SYSTEM OF OPENING UP CONTOUR RESERVES IN OPEN-PIT AND UNDERGROUND DEVELOPMENT OF ORE DEPOSITS IN MOUNTAIN AREAS. Mining Bulletin of Uzbekistan, [S. l.], v. 1, n. 104, p. 35–39, 2026. Disponível em: https://journal.nsumt.uz/academy/index.php/MBU/article/view/73. Acesso em: 8 aug. 2026.