@other{https://authors.library.caltech.edu/records/gpjw9-96j39,
    author = "Hoffman, Philip T.",
    title = "Why Is It That Europeans Ended Up Conquering the Rest of the Globe?  Prices, the Military Revolution, and Western Europe's Comparative Advantage in Violence",
    year = "2016",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20160321-115855827",
    id = "https://authors.library.caltech.edu/records/gpjw9-96j39"
}