@article{REAL:2015Zh,
  author = "REAL, Diego  and  CALVO, David",
  title = "{Nanobeacon and Laser Beacon: KM3NeT Time Calibration Devices}",
  doi = "10.22323/1.213.0365",
  journal = "PoS",
  year = 2015,
  volume = "TIPP2014",
  pages = "365"
}