@article{VanCamp:4172,
      author        = "Van Camp, M. and Hinzen, K.-G. and Camelbeeck, T.  and
                       Fleischer, C.  and Castelein, S.  and Frederick, B.  and
                       Caudron, C.",
      title         = "{Repeated gravity measurements across the Rhenish massif}",
      month         = "Apr",
      year          = "2019",
}