@article{Preciado:149862,
      author        = "Preciado, Javier and Sevillano, Pascual and Heras, Carlos
                       and Subias, Jesus and Sanahuja, David and Carretero,
                       Enrique and Martinez, Juan José",
      title         = "{Range and bandwidth extension in Direct-detection C-OTDR
                       using optical repeaters}",
      year          = "2021",
}