@book { UntersuchungdesFlieverhaltensvonflssigkristallinenPolymeren,
    title = "Untersuchung des Fließverhaltens von flüssigkristallinen Polymeren",
    author = "Hartmut {Siebert}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832412432",
    url = "https://m.diplom.de/document/217158"
}