@book { DemographischerWandelundInnovation,
    title = "Demographischer Wandel und Innovation",
    author = "Stefan {Scheidler}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832439651",
    url = "https://m.diplom.de/document/219603"
}