@book{ title = "Visio Tnugdali", author = "Wagner, Albrecht", year = "1989", publisher = "Olms", address = "Hildesheim u.a.", edition = "Nachdr. d. Ausg. Erlangen 1882", language = "ger", isbn = "3487091933", keywords = "Alber,Tundalus", note = "Text lat. u. mittelhochdt.", }