Reference Label	Details
Zengin 1996	V. Zengin, B. J. Persson, K. M. Strong, and R. E. Continetti, J. Chem. Phys. 105, 9740-9747 (1996) Study of the Low-Lying Electronic States of CCO by Photoelectron Spectroscopy of CCO- and ab initio Calculations
est unc	estimated uncertainty