@book { DerUrkundenbeweisinderHauptverhandlung,
    title = "Der Urkundenbeweis in der Hauptverhandlung",
    author = "Jürgen {Meyer}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088945"
}