Jentschura, Ulrich David Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;
Jentschura, U. D., Kotochigova, S., Le Bigot, E.-O., Mohr, P. J., & Taylor, B. N. (2005). Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis. Physical Review Letters, 95(16): 163003, pp. 1-4.