@book { ProgrammierungmitServletsundAppletsinJava,
    title = "Programmierung mit Servlets und Applets in Java",
    author = "Alexander {Ziegler}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832452414",
    url = "https://m.diplom.de/document/220766"
}