TY  - RPRT
TI  - Configuration-average energy shift owing to configuration interaction.
AU  - J Oreg
AU  - WH Goldstein
AU  - A Bar-Shalom
AU  - M Klapisch
PY  - 1989
DO  - 10.1103/physreva.39.4599
UR  - https://pubmed.ncbi.nlm.nih.gov/9901810/
ID  - 9901810
ER  -