@misc{indiciae6f0cd24d48ff,
  title = {Exchange-correlation potentials in density-functional and spin-density-functional theory.},
  author = {TK Ng},
  year = {1989},
  doi = {10.1103/physrevb.39.9947},
  url = {https://pubmed.ncbi.nlm.nih.gov/9947771/},
  note = {Source identifier: 9947771}
}