@book { DiePerspektivenderGemeinsamenHandelspolitik,
    title = "Die Perspektiven der Gemeinsamen Handelspolitik",
    author = "Sebastian {Trappe}",
    year = "2004",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638275323",
    url = "https://www.hausarbeiten.de/document/24731"
}