@book { NationundGeschichteimbernischenDenken,
    title = "Nation und Geschichte im bernischen Denken",
    author = "Hans {von Greyerz}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1069350"
}