TY  - RPRT
TI  - Missing-state analysis: A method for determining the origin of molecular nonlinear optical properties.
AU  - CW Dirk
AU  - MG Kuzyk
PY  - 1989
DO  - 10.1103/physreva.39.1219
UR  - https://pubmed.ncbi.nlm.nih.gov/9901358/
ID  - 9901358
ER  -