@book{ title = "Die Abrogans-Handschrift der Stiftsbibliothek St. Gallen", author = "Bischoff, Bernhard,Sonderegger, Stefan", year = "1977", publisher = "Zollikofer", address = "St. Gallen", title = "das älteste deutsche Buch", language = "ger", howpublished = "print", }