@misc{indiciae87104ab0f465,
  title = {Strong-motion recordings from the ML=5.5 Upland, California earthquake of February 28, 1990},
  author = {E. C. Etheredge and A.V. Acosta and L.J. Foote and D.A. Johnson and R.P. Maley and R. L. Porcella and J.C. Switzer},
  year = {1990},
  doi = {10.3133/ofr90311},
  url = {https://pubs.usgs.gov/publication/ofr90311},
  note = {Source identifier: ofr90311}
}