@book { HaftungsproblemebeimDirektbanking,
    title = "Haftungsprobleme beim Direkt-banking",
    author = "Caroline {Herkströter}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088618"
}