@book { DasBGBZahlungsdiensterechtimKontextderSingleEuroPaymentsArea,
    title = "Das BGB-Zahlungsdiensterecht im Kontext der Single Euro Payments Area",
    author = "Bernd {Bertelmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108415"
}