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    title = "Initial Results of Radio Occultation Observations of Earth's Atmosphere Using the Global Positioning System",
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    url = "https://resolver.caltech.edu/CaltechAUTHORS:20150121-092526117",
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    doi = "10.1126/science.271.5252.1107",
    volume = "271"
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    title = "XIXth General Assembly of the IAU",
    chapter = "Reference Frame Studies at JPL/Caltech",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20181211-080024412",
    id = "record",
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    title = "The Interpretation of Photoelectric Colors for Stars of Types B-F",
    journal = "Astrophysical Journal",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20170228-094501216",
    id = "record",
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    doi = "10.1086/146289",
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}