1. C. Alanzeau et al., “Extra Low ENergy Antiproton (ELENA) ring and its Transfer Lines: Design Report,” Tech. Rep. CERN-2014-002 (CERN, Geneva, Switzerland, 2014).
2. B. Autin et al., “The antiproton decelerator (AD), a simplified antiproton source (feasibility study),” Tech. Rep. CERN-PS-95-36-AR (CERN, Geneva, Switzerland, 1995).
3. C. Carli et al., “ELENA: Installations and Preparations for Commissioning,” in Proceedings of the 7th International Particle Accelerator Conference, IPAC16 (Busan, Korea, 2016) p. MOPOY009.
4. T. Eriksson et al., “ELENA - From Installation to Commissioning,” in Proceedings of the 8th International Particle Accelerator Conference, IPAC2017 (Copenhagen, Denmark, 2017) p. WEPVA034.
5. G. Tranquille et al., “Commissioning the ELENA Electron Cooler,” (2019), presented at the 12th International Workshop COOL2019 in Novosibirsk, Russia, unpublished.