@book { VerbrauchermotivationundConsumerResistance,
    title = "Verbrauchermotivation und Consumer Resistance",
    author = "Oliver {Schröder}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832498894",
    url = "https://m.diplom.de/document/225006"
}