@book { NachfragemachtimdeutschenLebensmitteleinzelhandel,
    title = "Nachfragemacht im deutschen Lebensmitteleinzelhandel",
    author = "Florian {Stollowsky}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836622622",
    url = "https://m.diplom.de/document/226357"
}