TY  - RPRT
TI  - Ionic-covalent transition in titanium oxides.
AU  - C Sousa
AU  - F Illas
PY  - 1994
DO  - 10.1103/physrevb.50.13974
UR  - https://pubmed.ncbi.nlm.nih.gov/9975615/
ID  - 9975615
ER  -