@article{Tardioli:89260,
      author        = "Tardioli, Danilo and Riazuelo, Luis and Sicignano,
                       Domenico and Rizzo, Carlos and Lera, Francisco and
                       Villarroel, José L. and Montano, Luis",
      title         = "{Ground robotics in tunnels: Keys and lessons learned
                       after 10 years of research and experiments}",
      year          = "2019",
}