@book { DasEndederSchriftformheilungsklausel,
    title = "Das Ende der Schriftformheilungsklausel",
    author = "Johanna {Rösch}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b17790",
    url = "https://www.peterlang.com/document/1059340"
}