@misc{indiciae5861ecebbe55,
  title = {Multichannel analysis of surface waves to map bedrock},
  author = {Richard D. Miller and Jianghai Xia and Choon B. Park and Julian M. Ivanov},
  year = {1999},
  doi = {10.1190/1.1438226},
  url = {https://pubs.usgs.gov/publication/70021214},
  note = {Source identifier: 70021214}
}