@book{ title = "Der Ackermann", author = "Johannes,Kirchhoff, Gerhard,Masereel, Frans", year = "1966", publisher = "Hueber", address = "München", title = "ein Streit- und Trostgespräch", language = "ger", series = "Deutsche Reihe für Ausländer. Reihe G: Dialoge - Szenen - Stücke", }