@book { WissenschaftlichesArbeiten,
    title = "Wissenschaftliches Arbeiten",
    author = "Hans Karl {Wytrzens} and Elisabeth {Schauppenlehner-Kloyber} and Monika {Sieghardt} and Georg {Gratzer}",
    year = "2017",
    publisher = "facultas",
    address = "Wien, Austria",
    url = "https://campus-lizenzen.facultas.at/document/943360"
}