@misc{indiciae44d2c9b433d5,
  title = {Degenerate spin-boson system.},
  author = {Y Chen and T Li},
  year = {1989},
  doi = {10.1103/physrevb.40.2712},
  url = {https://pubmed.ncbi.nlm.nih.gov/9992194/},
  note = {Source identifier: 9992194}
}