@misc{indiciaea712f3084290,
  title = {Phonons in a strongly coupled electron-phonon system.},
  author = {A Alexandrov and H Capellmann},
  year = {1991},
  doi = {10.1103/physrevb.43.2042},
  url = {https://pubmed.ncbi.nlm.nih.gov/9997472/},
  note = {Source identifier: 9997472}
}