@misc{indiciae05235de87595,
  title = {Analysis of dynamics in a parametrically damped pendulum.},
  author = {FG Xie and WM Zheng},
  year = {1994},
  doi = {10.1103/physreve.49.1888},
  url = {https://pubmed.ncbi.nlm.nih.gov/9961429/},
  note = {Source identifier: 9961429}
}