@book { ZumIrrtumbeimVertragsschlu,
    title = "Zum Irrtum beim Vertragsschluß",
    author = "Dirk {Schwaab}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1090437"
}