@book{ title = "Das "Buch der Natur"", author = "Konrad,Luff, Robert,Steer, Georg", year = "2003", publisher = "Niemeyer", address = "Tübingen", language = "ger","gmh", isbn = "3484360542", series = "Texte und Textgeschichte, 54", series = "Texte und Textgeschichte, ...", }