@book{ title = "Das Schachzabelbuch Kunrats von Ammenhausen", author = "Vetter, Ferdinand,Konrad,Jacobus,Mennel, Jakob", year = "1892", publisher = "Huber", address = "Frauenfeld", language = "ger","gmh", series = "Bibliothek älterer Schriftwerke der deutschen Schweiz, Ergänzungsbd.", }