@misc{indiciae378364dc2e19,
  title = {High-Tc superconductor YBa2Cu3O7- delta studied by positron annihilation.},
  author = {SJ Wang and SV Naidu and SC Sharma and DK De and DY Jeong and TD Black and S Krichene and JR Reynolds and JM Owens},
  year = {1988},
  doi = {10.1103/physrevb.37.603},
  url = {https://pubmed.ncbi.nlm.nih.gov/9943630/},
  note = {Source identifier: 9943630}
}