@book { Toevaluatedemergerasastrategicobjective,
    title = "To evaluate 'demerger' as a strategic objective",
    author = "Matthias {Feik}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832401474",
    url = "https://m.diplom.de/document/216100"
}