The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
A.H. Lumpkin, M. Downer, M. LaBerge, and D.W. Rule, “Observations on Microbunching of Electrons in Laser-Driven Plasma Accelerators and Free-Electron Lasers”, in Proc. FEL'19, Hamburg, Germany, Aug. 2019, pp. 722-725. doi:10.18429/JACoW-FEL2019-THP069