@misc{indiciae8ae915642060, title = {Second harmonic FEL oscillation.}, author = {G R Neil and S V Benson and G Biallas and J Gubeli and K Jordan and S Myers and M D Shinn}, year = {2001}, doi = {10.1103/physrevlett.87.084801}, url = {https://pubmed.ncbi.nlm.nih.gov/11497947/}, note = {Source identifier: 11497947} }