@misc{indiciaef155e0f540d1,
  title = {Interaction between tunneling impurities in metals.},
  author = {F Sols and P Bhattacharyya},
  year = {1988},
  doi = {10.1103/physrevb.38.12263},
  url = {https://pubmed.ncbi.nlm.nih.gov/9946165/},
  note = {Source identifier: 9946165}
}