@book { konomischeBetrachtungvonBusinessNetworkingimInternet,
    title = "Ökonomische Betrachtung von Business Networking im Internet",
    author = "Andreas {Stradner}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832497620",
    url = "https://m.diplom.de/document/224836"
}