@book { MarketingstrategiefrdasMPAOnlineStudiuminosteuropischenLndern,
    title = "Marketingstrategie für das MPA-Online-Studium in osteuropäischen Ländern",
    author = "Martin {Salamon}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832489274",
    url = "https://m.diplom.de/document/224102"
}