TY  - RPRT
TI  - Correlation-energy density-functional formulas from correlating first-order density matrices.
AU  - M Levy
AU  - A Görling
PY  - 1995
DO  - 10.1103/physreva.52.r1808
UR  - https://pubmed.ncbi.nlm.nih.gov/9912524/
ID  - 9912524
ER  -