@misc{indiciaee2d6fa4bf930,
  title = {Foreword},
  author = {Julio L. Betancourt},
  year = {2013},
  doi = {10.1007/978-94-007-6925-0},
  url = {https://pubs.usgs.gov/publication/70186191},
  note = {Source identifier: 70186191}
}