@misc{indiciae1777c8f86cad,
  title = {Multiple superconducting transition in ceramic YBa2Cu3O7- delta.},
  author = {D Goldschmidt},
  year = {1989},
  doi = {10.1103/physrevb.39.2372},
  url = {https://pubmed.ncbi.nlm.nih.gov/9948475/},
  note = {Source identifier: 9948475}
}