@misc{indiciae5247930aa931,
  title = {Quantum theory for Josephson-junction circuits.},
  author = {MJ Werner and PD Drummond},
  year = {1991},
  doi = {10.1103/physreva.43.6414},
  url = {https://pubmed.ncbi.nlm.nih.gov/9904982/},
  note = {Source identifier: 9904982}
}