@other{https://resolver.caltech.edu/CaltechETD:etd-11292007-090410,
    title = "Designing protein separations based on metal-affinity interactions",
    year = "1993",
    url = "https://resolver.caltech.edu/CaltechETD:etd-11292007-090410",
    id = "record",
    doi = "10.7907/aph0-0p32"
}