@misc{indiciae4eb19c6d784d,
  title = {Orientation-independent measures of ground motion},
  author = {D.M. Boore and Jennie Watson-Lamprey and N. A. Abrahamson},
  year = {2006},
  doi = {10.1785/0120050209},
  url = {https://pubs.usgs.gov/publication/70028497},
  note = {Source identifier: 70028497}
}