@misc{indiciae7c73c8ab5d7b,
  title = {Rigorous upper bound for the persistent current in systems with toroidal geometry.},
  author = {G Vignale},
  year = {1995},
  doi = {10.1103/physrevb.51.2612},
  url = {https://pubmed.ncbi.nlm.nih.gov/9979025/},
  note = {Source identifier: 9979025}
}