@misc{indiciaedc77606022b5,
  title = {Generalized gradient theory for silica phase transitions.},
  author = {DR Hamann},
  year = {1996},
  doi = {10.1103/physrevlett.76.660},
  url = {https://pubmed.ncbi.nlm.nih.gov/10061515/},
  note = {Source identifier: 10061515}
}