@book { DerNeueMarktimnationalenundinternationalenKontext,
    title = "Der Neue Markt im nationalen und internationalen Kontext",
    author = "Barbara {Kastner}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832414801",
    url = "https://m.diplom.de/document/217329"
}