@book { OrganisationsPPPPublicPrivatePartnershipsinDeutschlandProblemePotenzialeundempirischeAnalysen,
    title = "Organisations-PPP (Public Private Partnerships) in Deutschland: Probleme, Potenziale und empirische Analysen",
    author = "Martin {Herbold}",
    year = "2013",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/296591"
}