@book { Lowbudgetmarketing,
    title = "Lowbudgetmarketing",
    subtitle = "Kampagnen für KMU und Nonprofit-Organisationen",
    author = "Malte {Jablonski}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481476",
    url = "https://m.diplom.de/document/223371"
}