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Zhou, Mingfei; Frenking, Gernot (2021). "Transition-Metal Chemistry of the Heavier Alkaline Earth Atoms Ca, Sr, and Ba". Accounts of Chemical Research. 54 (15): 3071–3082. doi:10.1021/acs.accounts.1c00277. PMID34264062. S2CID235908113.
Zhou, Mingfei; Frenking, Gernot (2021). "Transition-Metal Chemistry of the Heavier Alkaline Earth Atoms Ca, Sr, and Ba". Accounts of Chemical Research. 54 (15): 3071–3082. doi:10.1021/acs.accounts.1c00277. PMID34264062. S2CID235908113.