@book { PromoPrintMagazinJahresausgabe2018,
    title = "Promo Print Magazin - Jahresausgabe 2018",
    author = "Marc {Debus} and Anne {Melis} and Frank {Billek} and Alexandra {Kersten-Spengler} and Cyril {Massel} and David {Neumann}",
    year = "2020",
    publisher = "Schreibstark-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1014886"
}