@misc{indiciae633ae154d048,
  title = {Quantum persistent currents and classical periodic orbits.},
  author = {von Oppen F and EK Riedel},
  year = {1993},
  doi = {10.1103/physrevb.48.9170},
  url = {https://pubmed.ncbi.nlm.nih.gov/10007148/},
  note = {Source identifier: 10007148}
}