@misc{indiciaebf274a1393d9,
  title = {Factorizability of the BCS wave function.},
  author = {S Östlund},
  year = {1990},
  doi = {10.1103/physrevb.42.8609},
  url = {https://pubmed.ncbi.nlm.nih.gov/9995039/},
  note = {Source identifier: 9995039}
}