The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
E. Schneidmiller, M.V. Yurkov, “Optimum Undulator Tapering of SASE FEL: From the Theory to Experiment”, in Proc. 8th Int. Particle Accelerator Conf. (IPAC'17), Copenhagen, Denmark, May 2017, paper WEPAB029, pp. 2639-2641, ISBN: 978-3-95450-182-3, https://doi.org/10.18429/JACoW-IPAC2017-WEPAB029, http://jacow.org/ipac2017/papers/wepab029.pdf, 2017.