@other{https://resolver.caltech.edu/CaltechETD:etd-04072008-112244,
    title = "Ultrafast Electron Diffraction",
    url = "https://resolver.caltech.edu/CaltechETD:etd-04072008-112244",
    id = "record",
    doi = "10.7907/AZ0P-H612"
}