@book { StateoftheArtundBedarfvonBusinessIntelligence,
    title = "State-of-the-Art und Bedarf von Business Intelligence",
    author = "Serdar {Danis}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640220434",
    url = "https://www.hausarbeiten.de/document/118249"
}