@book { ValueBasedKnowledgeStrategies,
    title = "Value Based Knowledge Strategies",
    author = "Tom {Trost}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832464646",
    url = "https://m.diplom.de/document/221885"
}