3. Evidence of Hollow Golden Cages
S. Bulusu, X. Li, L. S. Wang, and X. C. Zeng
Proc. Natl. Acad. Sci. (USA), 103, 8326-8330 (2006).

2. Planar-to-Tubular Structural Transition in Boron Clusters: B₂₀ as the Embryo of Single-Walled Boron Nanotubes"
B. Kiran, S. Bulusu, H. J. Zhai, S. Yoo, X. C. Zeng, and L. S. Wang
Proc. Natl. Acad. Sci. (USA), 102, 961-964 (2005).

1. Direct Experimental Observation of the Low Ionization Potentials of Guanine in Free Oligonucleotides Using Photoelectron Spectroscopy
X. Yang, X. B. Wang, E. R. Vorpagel, and L. S. Wang
Proc. Natl. Acad. Sci. (USA), 101, 17588-17592 (2004)