Modernization of railway signaling systems. Международный научный журнал «Инженер», [S. l.], v. 3, n. 3, p. 74–77, 2026. DOI: 10.56143/3030-3893-2025-3-74-77. Disponível em: https://engineer.tstu.uz/index.php/engineer-tstu/article/view/109. Acesso em: 26 jul. 2026.