Reference Label	Details
note unc	The quoted uncertainty appeared to correspond to one std dev. and was multiplied by 2 to come closer to the desired 95% confidence limit
Pachucki 2012	K. Pachucki and J. Komasa, J. Chem. Phys. 137, 204314/1-8 (2012) Rovibrational Levels of Helium Hydride Ion