@misc{indiciae7f4bab670e91,
  title = {Topographic Slope as a Proxy for Seismic Site-Conditions (VS30) and Amplification Around the Globe},
  author = {Trevor I. Allen and David J. Wald},
  year = {2007},
  doi = {10.3133/ofr20071357},
  url = {https://pubs.usgs.gov/publication/ofr20071357},
  note = {Source identifier: ofr20071357}
}