@book { EfficientConsumerResponseWiedergewinnungderProduktivitt,
    title = "Efficient Consumer Response - Wiedergewinnung der Produktivität",
    author = "Frank {Wollenburg}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832401443",
    url = "https://m.diplom.de/document/216097"
}