Ahmadi, M; Alves, BXR; Baker, CJ; Bertsche, W; Butler, E; Capra, A; Carruth, C; ... Wurtele, JS; + view all Ahmadi, M; Alves, BXR; Baker, CJ; Bertsche, W; Butler, E; Capra, A; Carruth, C; Cesar, CL; Charlton, M; Cohen, S; Collister, R; Eriksson, S; Evans, A; Evetts, N; Fajans, J; Friesen, T; Fujiwara, MC; Gill, DR; Gutierrez, A; Hangst, JS; Hardy, WN; Hayden, ME; Isaac, CA; Ishida, A; Johnson, MA; Jones, SA; Jonsell, S; Kurchaninov, L; Madsen, N; Mathers, M; Maxwell, D; McKenna, JTK; Menary, S; Michan, JM; Momose, T; Munich, JJ; Nolan, P; Olchanski, K; Olin, A; Pusa, P; Rasmussen, CØ; Robicheaux, F; Sacramento, RL; Sameed, M; Sarid, E; Silveira, DM; Stracka, S; Stutter, G; So, C; Tharp, TD; Thompson, JE; Thompson, RI; van der Werf, DP; Wurtele, JS; - view fewer (2017) Observation of the hyperfine spectrum of antihydrogen. Nature , 548 (7665) pp. 66-69. 10.1038/nature23446.