@misc{indiciaedfcec607caf1,
  title = {Electron correlation and the band gap in ionic crystals.},
  author = {MS Hybertsen and SG Louie},
  year = {1985},
  doi = {10.1103/physrevb.32.7005},
  url = {https://pubmed.ncbi.nlm.nih.gov/9936836/},
  note = {Source identifier: 9936836}
}