@book { AnalysisofNokiasCorporatebusinessandmarketingstrategies,
    title = "Analysis of Nokia‘s Corporate, business, and marketing strategies",
    author = "Arend {Grünewälder}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640127856",
    url = "https://www.hausarbeiten.de/document/112926"
}