@article{Bregman:2019QO,
  author = "Bregman, J. A.  and  Wijnholds, Stefan J.  and  Brentjens, Michiel",
  title = "{Preparing for LOFAR}",
  doi = "10.22323/1.361.0009",
  journal = "PoS",
  year = 2019,
  volume = "Westerbork",
  pages = "009"
}