@book { BurgundunddieEidgenossenschaftzurZeitKarlsdesKhnen,
    title = "Burgund und die Eidgenossenschaft zur Zeit Karls des Kühnen",
    author = "Norbert {Stein}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070426"
}