@book { ComparisonofthenationalincomeofdifferentdevelopingcountrieswiththepublishedturnoverofthelargestMNCs,
    title = "Comparison of the national income of different developing countries with the published turnover of the largest MNCs. ",
    author = "Natalie {Züfle}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656027041",
    url = "https://www.hausarbeiten.de/document/180109"
}