TY  - RPRT
TI  - Laser theory without the rotating-wave approximation.
AU  - R Vyas
AU  - S Singh
PY  - 1986
DO  - 10.1103/physreva.33.375
UR  - https://pubmed.ncbi.nlm.nih.gov/9896621/
ID  - 9896621
ER  -