@book { OptimierungdesWeltliteraturprogrammsvonHrbuchverlagen,
    title = "Optimierung des Weltliteraturprogramms von Hörbuchverlagen",
    author = "Anja {Möbius}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832478513",
    url = "https://m.diplom.de/document/223108"
}