Zilmer, K. (2005). "He drowned in Holmr's Sea, his cargo-ship drifted to the sea-bottom, only three came out alive": Records and representations of Baltic traffic in the Viking age and the early Middle Ages in early Nordic sources. Tartu University Press.
Chicago-referens (17:e uppl.)Zilmer, Kristel. "He Drowned in Holmr's Sea, His Cargo-ship Drifted to the Sea-bottom, Only Three Came Out Alive": Records and Representations of Baltic Traffic in the Viking Age and the Early Middle Ages in Early Nordic Sources. [Tartu]: Tartu University Press, 2005.
MLA-referens (8:e uppl.)Zilmer, Kristel. "He Drowned in Holmr's Sea, His Cargo-ship Drifted to the Sea-bottom, Only Three Came Out Alive": Records and Representations of Baltic Traffic in the Viking Age and the Early Middle Ages in Early Nordic Sources. Tartu University Press, 2005.