@book { IdentittundkulturelleDifferenz,
    title = "Identität und kulturelle Differenz",
    subtitle = "Qualitative Studie zur Reintegration nach einjährigem Auslandsaufenthalt",
    author = "Sonja {Schröder}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/226569"
}