MOCZARSKI, Jarosław. Technical state of signaling systems in organization of maintenance process. Archives of Transport, Warsaw, Poland, v. 22, n. 2, p. 201–218, 2010. DOI: 10.2478/v10174-010-0013-2. Disponível em: https://archivesoftransport.com/index.php/aot/article/view/55.. Acesso em: 3 jul. 2024.