@book { Hamburghartzart, title = "Hamburg hart + zart", subtitle = "35 Geschichten · Neun Autoren · Eine Stadt", author = "Christoph {Ernst} and Dagmar {Hecht} and Michael {Jalowczarz} and Jürgen {Müller} and Vera {Rosenbusch} and Irina {Tegen} and Petra {Wilson} and Olaf {Wulf} and Hilkka {Zebothsen} and Autorengruppe {Blut und Feder}", year = "2016", publisher = "Bedey Media GmbH", address = "Hamburg, Deutschland", url = "https://kaderaverlag.openpublishing.com/document/317932" }