@book { VertraueninUnternehmensnetzwerken,
    title = "Vertrauen in Unternehmensnetzwerken",
    author = "Arno {Schwarz}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832492267",
    url = "https://m.diplom.de/document/224349"
}