The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
I. Hofmann, “Revisiting the Longitudinal 90 Degree Limit for Superconducting Linear Accelerators”, in Proc. 61\textsuperscript{st} ICFA ABDW on High-Intensity and High-Brightness Hadron Beams (HB'18), Daejeon, Korea, June 2018, pp. 369-372, doi:10.18429/JACoW-HB2018-THP2WB01