witchcraft
“Nordic Witchcraft in Transition: Impotence, Heresy, and Diabolism in 14th-century Bergen”, Scandia. Tidskrift för historisk forskning, vol. 63, no. 1, p. 17-33, 1997.
“Blåkulla and its Antecedents: Transvection and Conventicles in Nordic Witchcraft”, Alvíssmál. Forschungen zur mittelalterlichen Kultur Skandinaviens , vol. 7, p. 81-100, 1997. Website
“Anaphrodisiac Charms in the Nordic Middle Ages: Impotence, Infertility, and Magic”, Norveg. The Norwegian Journal of Folklore, vol. 38, p. 19-42, 1998.
, “Special Section: Witchcraft in Local and Global Perspectives (Introduction)”, Western Folklore, vol. 59, no. 3-4, p. 246-50, 2000.
“Gender and Nordic Witchcraft in the Later Middle Ages”, Arv: The Yearbook of Scandinavian Folklore, vol. 56, p. 7-24, 2000.
“Folklore and Philology Revisited: Medieval Scandinavian Folklore?”, in Norden og Europa. Fagtradisjoner i nordisk etnologi og folkloristikk, Olso: Novus forlag, 2000, p. 286-94.
“Witchcraft Persecutions in the Post-Craze Era: The Case of Ann Izzard of Great Paxton, 1808”, Western Folklore, vol. 59, p. 304-38, 2000. Website
“Magic as Acquired Art and the Ethnographic Value of the Sagas”, in Old Norse Myths, Literature and Society, Viborg: University Press of Southern Denmark, 2003, p. 132-52. Website
“A Case of Witchcraft Assault in early nineteenth-century England as Ostensive Action”, in Witchcraft continued: Popular magic in modern Europe, Manchester: Manchester University Press, 2004, p. 1-28. Website
Culture and Belief 16: Performance, Tradition and Cultural Studies: An Introduction to Folklore and Mythology
Witchcraft and Magic in the Nordic Middle Ages. Philadelphia: University of Pennsylvania Press, 2011. Website

