@misc{indiciaee2d9e3ef351b,
  title = {An exactly soluble non-linear dynamical system.},
  author = {G Papini},
  year = {1977},
  doi = {10.1007/bf02460687},
  url = {https://pubmed.ncbi.nlm.nih.gov/830189/},
  note = {Source identifier: 830189}
}