@book { Dataportabilityandrelationmanagementinsocialwebapplications,
    title = "Data portability and relation management in social web applications",
    author = "Sören {Weber}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836623278",
    url = "https://m.diplom.de/document/226203"
}