Saga af bróður Ylfing
By: er skrifað hefir Friðrik Ásmundsson Brekkan
Publisher: Þorsteinn M. Jónsson
Published: 1929
Place of publication: Akureyri
Language: ice; dan
Number of pages: 324
Notes: Augmented, revised version of the authors̕ Ulveungernes broder. Copenhagen, 1924.

Based on the story of the battle of Clontarf (Brjánsbardagi) in Njáls saga.