@other{https://resolver.caltech.edu/CaltechTHESIS:10152014-102825697,
    title = "A quantitative investigation of the solar modulation of cosmic-ray protons and helium nuclei",
    url = "https://resolver.caltech.edu/CaltechTHESIS:10152014-102825697",
    id = "record",
    doi = "10.7907/Q0NJ-4D68"
}