@book { LafundacindelColegiodeEuropaenBrujas,
    title = "La fundación del Colegio de Europa en Brujas",
    author = "Karel J. {Verleye}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Bruxelles, Belgium",
    url = "https://www.peterlang.com/document/1087740"
}