Victor Millet (2005)
Von Drachentötern, Quellenfiktionen, Pastourellen und Lehnwörtern. Kritische Notizen zu jüngeren Thesen über deutsch-spanische Beziehungen im Mittelalter
Zeitschrift für deutsche Philologie, 124(1):90-121.
The article discusses the interpretation of the figure of the dragon slayer in a Romanesque church in Sangüesa as Sigurd, the search for an Iberian prototype for Kyot, Wolfram's alleged source in Parzival, two attempts to discover literary traces of Oswald's journeys to Spain, and the hypothesis of an etymological connection between Old Saxon tirri (Hildebrandslied, v.25) and Castlian tirria.