@book { UntersuchungenzuTrafficEngineeringimUMTSCoreNetwork,
    title = "Untersuchungen zu Traffic Engineering im UMTS Core-Network",
    author = "Martin {Schober}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832465285",
    url = "https://m.diplom.de/document/221707"
}