@other{https://resolver.caltech.edu/CaltechTHESIS:05012013-111738760,
    title = "Iso-specific Ziegler-Natta polymerization of α-olefins with a single-component organoyttrium catalyst",
    year = "1994",
    url = "https://resolver.caltech.edu/CaltechTHESIS:05012013-111738760",
    id = "record",
    doi = "10.7907/djm5-zt75"
}