@misc{indiciaed2fe7f2aba19,
  title = {Introduction},
  author = {Peter D. Warwick},
  year = {2007},
  doi = {10.1007/s11053-007-9048-3},
  url = {https://pubs.usgs.gov/publication/70195444},
  note = {Source identifier: 70195444}
}