@book{ title = "Berthold von Holle", author = "Berthold,Bartsch, Karl", year = "1858", publisher = "", address = "Nürnberg", language = "ger", content = "Resolving-System", "kostenfrei", "Volltext // Exemplar mit der Signatur: München, Bayerische Staatsbibliothek -- P.o.germ. 99 p", "kostenfrei", }