Reference Label	Details
Belau 2007	L. Belau, S. E. Wheeler, B. W. Ticknor, M. Ahmed, S. R. Leone, W. D. Allen, H. F. Schaefer III, and M. A. Duncan, J. Am. Chem. Soc. 129, 10229-10243 (2007) Ionization Thresholds of Small Carbon Clusters: Tunable VUV Experiments and Theory