“Scandinavian Balladry and the Old Norse Legacy: ‘Álvur kongur’ (CCF 14) ‘Stolt Herr Alf’ (ST 5), and Hálfs saga”, Arv: The Yearbook of Scandinavian Folklore, p. 1-11, 1985.

“The Sagaman and Oral Literature: The Icelandic Traditions of Hjörleifr inn kvensami and Geirmundr heljarskinn”, in Comparative Research on Oral Traditions: A Memorial for Milman Parry, Columbus, Ohio: Slavica, 1987, p. 395-423.

Heroic Sagas and Ballads. Ithaca: Cornell University Press, 1991. Website

“Forging Traditions: Oral and Literary Multiforms of Kämpen Grimborg (ST 7)”, Arv: The Yearbook of Scandinavian Folklore, vol. 57, p. 55-69, 2001.

“gandr-Göndul: Än en gång”, in Grammatik i fokus. I. Nordisk filologi, Lund: Lunds universitet, 2003, p. 117-23.

“The fornaldarsögur and Nordic Balladry: The Sámsey Episode across Genres”, in Fornaldarsagornas struktur och ideologi, Uppsala: Uppsala Universitet, 2003, p. 245-56.

with others, “Interrogating Genre in the Fornaldarsögur: A Round-Table Discussion”, Viking and Medieval Studies, vol. 2, p. 275-96, 2007.

“The heroic and legendary sagas”, in The Viking World, London: Routledge, 2008, p. 319-22. Website

“The Supernatural and the fornaldarsögur: The Case of Ketils saga hængs”, in Fornaldarsagaerne. Myter og virkelighed. Studier i de oldislandske fornaldarsögur Norðurlanda, Copenhagen: Museum Tusculanum Forlag . Københavns Universitet, 2009, p. 281-98. Website

Witchcraft and Magic in the Nordic Middle Ages. Philadelphia: University of Pennsylvania Press, 2011. Website