@book { RocknRollvsLipsitheInfluenceofAmericanPopularCultureontheGDR,
    title = "Rock'n'Roll vs. Lipsi - the Influence of American Popular Culture on the GDR",
    author = "Patricia {Patkovszky}",
    year = "2007",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638011327",
    url = "https://www.hausarbeiten.de/document/85987"
}