@misc{indiciae38b999765e82,
  title = {A FORTRAN program for calculating nonlinear seismic ground response},
  author = {William B. Joyner},
  year = {1977},
  doi = {10.3133/ofr77671},
  url = {https://pubs.usgs.gov/publication/ofr77671},
  note = {Source identifier: ofr77671}
}