Baker, C., Ahmadi, M., Alves, B. X. R., Bertsche, W., Capra, A., Carruth, C., . . . Wurtele, J. S. (2018). Characterization of the 1S–2S transition in antihydrogen. Nature, 557(7703), pp. 71-75. doi:10.1038/s41586-018-0017-2

Baker, Christopher, et al. "Characterization of the 1S–2S Transition in Antihydrogen." Nature 557, no. 7703 (2018): 71-75.

Baker, Christopher, et al. "Characterization of the 1S–2S Transition in Antihydrogen." Nature 557.7703 (2018): 71-75.