@book { DasEconomicExposuredeutscherUnternehmungen,
    title = "Das Economic Exposure deutscher Unternehmungen",
    author = "Marko {Brunner}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1096401"
}