@misc{indiciae367075829faa,
  title = {Auxiliary-space variational approach for the U=},
  author = {VY Krivnov and AA Ovchinnikov},
  year = {1992},
  doi = {10.1103/physrevb.45.12996},
  url = {https://pubmed.ncbi.nlm.nih.gov/10001365/},
  note = {Source identifier: 10001365}
}