@misc{indiciae5ad2b5ce21d1,
  title = {Action-angle variables for the diamagnetic Kepler problem.},
  author = {D Farrelly and JA Milligan},
  year = {1992},
  doi = {10.1103/physreva.45.8277},
  url = {https://pubmed.ncbi.nlm.nih.gov/9906921/},
  note = {Source identifier: 9906921}
}