TY  - RPRT
TI  - Atom-field interaction without the rotating-wave approximation: A path-integral approach.
AU  - K Zaheer
AU  - MS Zubairy
PY  - 1988
DO  - 10.1103/physreva.37.1628
UR  - https://pubmed.ncbi.nlm.nih.gov/9899837/
ID  - 9899837
ER  -