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    title = "The Occurrence and Distribution of Ca, Sr, Ba, and Pb in Marine Ecosystems",
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    id = "record",
    doi = "10.7907/6b1e-bw74"
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    title = "Weathering mechanisms and mass balance in a high Sierra Nevada watershed - distribution of alkali and alkaline earth metals in components of parent rock and soil, snow, soil moisture and stream outflow",
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@other{https://resolver.caltech.edu/CaltechETD:etd-10052006-093021,
    title = "Studies of the Geochemical Similarity of Plutonium and Samarium and Their Implications for the Abundance of ²⁴⁴Pu in the Early Solar System",
    url = "https://resolver.caltech.edu/CaltechETD:etd-10052006-093021",
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    id = "record",
    doi = "10.7907/W43G-ED67"
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@other{https://resolver.caltech.edu/CaltechETD:etd-01152004-092735,
    title = "I. The Rate of Recombination of Iodine Atoms. II. Some Studies of the Trace Quantities of Lead, Uranium, and Thorium in Marine Carbonate Skeletons",
    url = "https://resolver.caltech.edu/CaltechETD:etd-01152004-092735",
    id = "record",
    doi = "10.7907/KV4S-PC49"
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    url = "https://resolver.caltech.edu/CaltechTHESIS:04112011-111843025",
    id = "record",
    doi = "10.7907/1RX3-W586"
}