@book { ContentManagementSystemeausmedienkonomischerSicht,
    title = "Content Management Systeme aus medienökonomischer Sicht",
    author = "Sevdalina {Kirilova}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832495039",
    url = "https://m.diplom.de/document/224633"
}