@misc{indiciae0436c73f4698,
  title = {Spectral function in the two-dimensional Hubbard model.},
  author = {Q Li and J Callaway and L Tan},
  year = {1991},
  doi = {10.1103/physrevb.44.10256},
  url = {https://pubmed.ncbi.nlm.nih.gov/9999032/},
  note = {Source identifier: 9999032}
}