@book { VarietiesofCapitalism,
    title = "Varieties of Capitalism",
    author = "Michael {Sting}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656429401",
    url = "https://www.hausarbeiten.de/document/214699"
}