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da Costa, C.P.; Sigel, H. (2000). „Lead(II)-Binding Properties of the 5′-Monophosphates of Adenosine (AMP2−), Inosine (IMP2−), and Guanosine (GMP2−) in Aqueous Solution. Evidence for Nucleobase−Lead(II) Interactions”. Inorg. Chem.39 (26): 5985–5993. DOI:10.1021/ic0007207. PMID11151499.