@other{https://thesis.library.caltech.edu/id/eprint/3445,
    author = "Yan, Lin",
    title = "Binary stars in globular clusters",
    year = "1996",
    url = "https://resolver.caltech.edu/CaltechETD:etd-09102008-140218",
    id = "https://thesis.library.caltech.edu/id/eprint/3445",
    doi = "10.7907/n04t-dp55"
}