@misc{indiciae92999d82382c,
  title = {Ehrenfest times for classically chaotic systems.},
  author = {P G Silvestrov and C W J Beenakker},
  year = {2002},
  doi = {10.1103/physreve.65.035208},
  url = {https://pubmed.ncbi.nlm.nih.gov/11909151/},
  note = {Source identifier: 11909151}
}