@misc{indiciae9606bd295ff8,
  title = {Modular symmetry in parametrically excited quantum oscillators.},
  author = {DI Fivel},
  year = {1993},
  doi = {10.1103/physrevlett.71.3617},
  url = {https://pubmed.ncbi.nlm.nih.gov/10055029/},
  note = {Source identifier: 10055029}
}