Nauta, J; Thorpe-Woods, E; Whale, J; Wilson, A; Oliveira, A N; Marshall, V R; Schoonwater, J; Ashkhasi, A; Rasmussen, C Ø; Madsen, N; Hangst, J S; Gibble, K; Szymaniec, K; Hendricks, R J; Eriksson, S (2025) Evaluation of a caesium fountain frequency standard for antihydrogen spectroscopy. Metrologia, 62 (4). 045008 ISSN 0026-1394