TY  - RPRT
TI  - High-gain harmonic generation free-electron laser with variable wavelength.
AU  - Timur Shaftan
AU  - Li Hua Yu
PY  - 2005
DO  - 10.1103/physreve.71.046501
UR  - https://pubmed.ncbi.nlm.nih.gov/15903798/
ID  - 15903798
ER  -