The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
H. J. Choi, J.H. Han, H.-S. Kang, S.H. Kim, H.-G. Lee, and S.B. Lee, “HLS to Measure Changes in Real Time in the Ground and Building Floor of PAL-XFEL, Large-Scale Scientific Equipment”, in Proc. 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper WEP041, pp. 503-506, ISBN: 978-3-95450-179-3, https://doi.org/10.18429/JACoW-FEL2017-WEP041, 2018.