@misc{indiciae8836b6467645,
  title = {Calculation of optical matrix elements with nonlocal pseudopotentials.},
  author = {AJ Read and RJ Needs},
  year = {1991},
  doi = {10.1103/physrevb.44.13071},
  url = {https://pubmed.ncbi.nlm.nih.gov/9999492/},
  note = {Source identifier: 9999492}
}