@other{https://resolver.caltech.edu/CaltechCSTR:1980.3759-tr-80,
    title = "The Homogeneous Machine",
    url = "https://resolver.caltech.edu/CaltechCSTR:1980.3759-tr-80",
    id = "record",
    doi = "10.7907/6cbb2-qgq58"
}