@book { TeleologischeReduktiondes181BGB,
    title = "Teleologische Reduktion des § 181 BGB",
    author = "Wolfgang {Jäger}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088411"
}