@misc{indiciae8a89d631be18,
  title = {Recent underwater surveys using low-frequency sound to locate shallow bedrock},
  author = {W. O. Smith},
  year = {1958},
  doi = {10.1130/0016-7606(1958)69[69:rusuls]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70212095},
  note = {Source identifier: 70212095}
}