@misc{indiciae649590d7fd3c,
  title = {Shear wave structure of Umbria and Marche, Italy, strong motion seismometer sites Affected by the 1997-98 Umbria-Marche, Italy, earthquake sequence},
  author = {Robert Kayen and Giuseppe Scasserra and Jonathan P. Stewart and Giuseppe Lanzo},
  year = {2008},
  doi = {10.3133/ofr20081010},
  url = {https://pubs.usgs.gov/publication/ofr20081010},
  note = {Source identifier: ofr20081010}
}