TY  - RPRT
TI  - Conceptual density functional theory.
AU  - P Geerlings
AU  - F De Proft
AU  - W Langenaeker
PY  - 2003
DO  - 10.1021/cr990029p
UR  - https://pubmed.ncbi.nlm.nih.gov/12744694/
ID  - 12744694
ER  -