@misc{indiciae11fab832c8bf,
  title = {Sharpness of upper-mantle discontinuities determined from high-frequency reflections},
  author = {H.M. Benz and J.E. Vidale},
  year = {1993},
  doi = {10.1038/365147a0},
  url = {https://pubs.usgs.gov/publication/70017978},
  note = {Source identifier: 70017978}
}