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: Theory and Experimental Results From FLASH2”, in Proc. 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper MOP035, pp. 113-116, ISBN: 978-3-95450-179-3, https://doi.org/10.18429/JACoW-FEL2017-MOP035, 2018.