Reference Label Details
note uncThe quoted uncertainty appeared to correspond to one std dev. and was multiplied by 2 to come closer to the desired 95% confidence limit
Drake 1988G. W. F. Drake, Can. J. Phys. 66, 586–611 (1988)
Theoretical Energies for the n=1 and 2 States of the Helium Isoelectronic Sequence up to Z=100