@misc{indiciaeeda1886d7f39,
  title = {Shallow P- and S-wave velocities and site resonances in the St. Louis region, Missouri-Illinois},
  author = {R. A. Williams and J. K. Odum and W. J. Stephenson and Robert B. Herrmann},
  year = {2007},
  doi = {10.1193/1.2753548},
  url = {https://pubs.usgs.gov/publication/70030965},
  note = {Source identifier: 70030965}
}