TY  - RPRT
TI  - Three-step model for high-harmonic generation in many-electron systems.
AU  - Robin Santra
AU  - Ariel Gordon
PY  - 2006
DO  - 10.1103/physrevlett.96.073906
UR  - https://pubmed.ncbi.nlm.nih.gov/16606094/
ID  - 16606094
ER  -