@book { DasWiderrufsrechtinderVerbraucherkreditrichtlinie200848EG,
    title = "Das Widerrufsrecht in der Verbraucherkreditrichtlinie 2008/48/EG",
    author = "Silke {Maas}",
    year = "2019",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b15464",
    url = "https://www.peterlang.com/document/1057706"
}