First ReMi experiments at a cryogenic ion storage ring. - Schulz, M.; Herrmann, F.; Zhang, W.; Dorn, A.; Grieser, M.; Grussie, F.; Kreckel, H.; Novotny, O.; Wolf, A.; Pfeifer, T.; Schröter, C. D.; Moshammer, R. (European Physical Journal: Special Topics, 2026)