Estrada de Ferro Minas e Rio
Túneis ferroviários - Brasil, Sudeste
Ferrovias - Projetos e construção - Brasil, Sudeste
Ferrovias - Manutenção e reparos - Brasil, Sudeste
Túnel da Mantiqueira (SP e MG)
Railroad tunnels - Brazil, Southeastern
Railroads - Design and construction - Brazil, Southeastern
Railroads - Maintenance and repair - Brazil, Southeastern