@misc{indiciae78019413ee8f,
  title = {The earthquake of the century in Northwestern Europe: the Roermond, the Netherlands, earthquake of April 13, 1992},
  author = {T. van Eck and L. Ahorner and H. Paulssen},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70176505},
  note = {Source identifier: 70176505}
}