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D. M. Mao, X. K. Hu, J. H. Leech, Y. J. Shi, and R. H. Lipson. (2001). Extreme ultraviolet laser/time-of-flight mass spectra of Kr₂ near the Kr^*(4d,5p,6s) manifolds. J. Chem. Phys. 114, 4025 - 4035.           

J. B. A. Mitchell, R. H. Lipson, and B. K. Sapral. (2001).  Dissociative recombination of Xe₂⁺ and XeH⁺.  Abstracts of Papers, 222^nd ACS National Meeting, Chicago, IL, United States, August 26-30, 2001.           

S. S. Dimov, S. L. Chryssoulis, and R. H. Lipson. (2001). Trace element analysis of precious metals in minerals by time-of-flight resonance ionization mass spectrometry (TOF-RIMS). AIP Conference Proceedings 584 (Resonance Ionization Spectroscopy 2000), 46-51.