X. K. Hu, J. B. A. Mitchell, and R. H. Lipson. (2000). Resonance-enhanced multiphoton-ionization-photoelectron study of the dissociative recombination and associative ionization of Xe₂⁺. Phys. Rev. A 62 052712-1 -1052712-8.           

D. M. Mao, X. K. Hu, Y. J. Shi, and R. H. Lipson. (2000). Dispersive photoelectron spectroscopy of the ungerade Rydberg states of Xe₂ near Xe^*(6p,5d), Chem. Phys. 257, 253-261.           

D. M. Mao, X. K. Hu, Y. J. Shi, J. Ma, and R. H. Lipson, (2000). Vacuum ultraviolet laser/time-of-flight mass spectra of Xe₂ near Xe^*(5d, 6p,6s) atomic lines,  Can. J. Phys.78, 433-447.   (Invited article, B. P. Stoicheff issue)       

R. H. Lipson, S. S. Dimov, P. Wang, Y. J. Shi, D. M. Mao, X. K. Hu, and J. Vanstone, (2000). Vacuum ultraviolet and extreme ultraviolet lasers: Principles, instrumentation, and applications, Instrum. Sci. Technol. 28, 85-118. (Invited article)