@misc{indiciaec954e5d3a479,
  title = {Foreword},
  author = {Jonathan M. Friedman and Michael L. Scott and Duncan Patten},
  year = {1998},
  doi = {10.1007/bf03161667},
  url = {https://pubs.usgs.gov/publication/70175559},
  note = {Source identifier: 70175559}
}