@other{https://resolver.caltech.edu/CaltechETD:etd-09172008-152836,
    title = "M Subdwarfs and the Population II Luminosity Function",
    year = "1998",
    url = "https://resolver.caltech.edu/CaltechETD:etd-09172008-152836",
    id = "record",
    doi = "10.7907/pfke-c379"
}


@other{https://resolver.caltech.edu/CaltechETD:etd-09242008-091045,
    title = "The faintest stars",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechETD:etd-09242008-091045",
    id = "record",
    doi = "10.7907/0wrn-f607"
}