Frequency measurement of the 2S-12D transitions in hydrogen and deuterium, new determination of the Rydberg constant.
Catherine SchwobLeszek JozefowskiOuali AcefLaurent HilicoBeatrice de BeauvoirFrancois NezLucile JulienAndré ClaironFrancois BirabenPublished in: IEEE Trans. Instrum. Meas. (1999)