@book { BildungundGemeinsinn,
    title = "Bildung und Gemeinsinn",
    author = "Thomas {Wanninger}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832418885",
    url = "https://m.diplom.de/document/217736"
}