The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
W. Qin, K.-J. Kim, R.R. Lindberg, and J. Wu, “X-ray FEL Oscillator Seeded Harmonic Amplifier for High Energy Photons”, in Proc. 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper MOP062, pp. 196-199, ISBN: 978-3-95450-179-3, https://doi.org/10.18429/JACoW-FEL2017-MOP062, 2018.