@incollection{ title = "Walahfrid Strabo's 'De imagine tetrici'", booktitle = "In:Latin culture and mediaeval Germanic Europe;Groningen : Forsten, 1992;1992, S. 25/41;128 S.", author = "Herren, Michael W.", year = "1992", title = "an interpretation", language = "und", howpublished = "print", keywords = "Walahfridus", }