@misc{indiciae5bba153d19eb,
  title = {Response of pendulums to complex input ground motion},
  author = {V. Graizer and E. Kalkan},
  year = {2008},
  doi = {10.1016/j.soildyn.2007.09.003},
  url = {https://pubs.usgs.gov/publication/70033242},
  note = {Source identifier: 70033242}
}