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Cheng, S.B.; Berkdemir, C.; Melko, J.J.; Castleman, A.W., Probing the Electronic Structures and Relative Stabilities of Monomagnesium Oxide Clusters MgOx- and MgOx (x=1-4): A Combined Photoelectron Imaging and Theoretical Investigation, J. Phys. Chem. A, 2013, 117, 46, 11896-11905, https://doi.org/10.1021/jp403134g . [all data]