@misc{indiciae32fd33dd64c4,
  title = {Precision leveling and geodetic GPS observations performed on Surtsey between 1967 and 2002},
  author = {Erik Sturkell and P. Einarsson and Halldor Geirsson and E. Tryggvason and James G. Moore and Rosa Olafsdottir},
  year = {2009},
  url = {https://pubs.usgs.gov/publication/70198254},
  note = {Source identifier: 70198254}
}