TY  - RPRT
TI  - Emission spectra of a Lambda -type quantum-beat three-level atom.
AU  - MM Ashraf
PY  - 1994
DO  - 10.1103/physreva.50.741
UR  - https://pubmed.ncbi.nlm.nih.gov/9910945/
ID  - 9910945
ER  -