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Crumley, W.H.; Hayden, J.S.; Gole, J.L., Laser induced excitation spectroscopy of copper trimer in various stages of supersonic expansion: Observation of fluorescence from dissociative levels, J. Chem. Phys., 1986, 84, 10, 5250, https://doi.org/10.1063/1.449934 . [all data]