@book { DieScheinbussenimmittelalterlichenRecht,
    title = "Die Scheinbussen im mittelalterlichen Recht",
    author = "Rolf {Stratmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1070502"
}