The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
C. Sydlo et al., “Femtosecond Optical Synchronization System for the European XFEL”, in Proc. 8th Int. Particle Accelerator Conf. (IPAC'17), Copenhagen, Denmark, May 2017, paper THPAB108, pp. 3969-3971, ISBN: 978-3-95450-182-3, https://doi.org/10.18429/JACoW-IPAC2017-THPAB108, http://jacow.org/ipac2017/papers/thpab108.pdf, 2017.