@misc{indiciae1d9b4ea73011,
  title = {Hubbard U=},
  author = {D Schmeltzer},
  year = {1991},
  doi = {10.1103/physrevb.43.8650},
  url = {https://pubmed.ncbi.nlm.nih.gov/9996508/},
  note = {Source identifier: 9996508}
}