@book { ElbenGeschichten,
    title = "Elben-Geschichten",
    author = "Alfred {Bekker} and Hendrik M. {Bekker}",
    year = "2019",
    publisher = "Uksak E-Books",
    address = "Lengerich, Deutschland",
    url = "https://uksakebooks.grin.com/document/373728"
}