The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
H. Geng et al., “Dynamic Aperture Optimization at CEPC with Pretzel Orbit”, in Proc. 7th Int. Particle Accelerator Conf. (IPAC'16), Busan, Korea, May 2016, paper THPOR017, pp. 3808-3810, ISBN: 978-3-95450-147-2, doi:10.18429/JACoW-IPAC2016-THPOR017, http://jacow.org/ipac2016/papers/thpor017.pdf, 2016.