TY  - RPRT
TI  - Four-wave mixing in strongly driven two-level systems.
AU  - W Chalupczak
AU  - W Gawlik
AU  - J Zachorowski
PY  - 1994
DO  - 10.1103/physreva.49.4895
UR  - https://pubmed.ncbi.nlm.nih.gov/9910808/
ID  - 9910808
ER  -