@misc{indiciae31ef97154e8d,
  title = {Ionic-covalent transition in titanium oxides.},
  author = {C Sousa and F Illas},
  year = {1994},
  doi = {10.1103/physrevb.50.13974},
  url = {https://pubmed.ncbi.nlm.nih.gov/9975615/},
  note = {Source identifier: 9975615}
}