@book { ErstdasFressendanndieMoral,
    title = "Erst das Fressen, dann die Moral?",
    author = "Gordon {Wagner}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656170518",
    url = "https://www.hausarbeiten.de/document/192113"
}