William H. Swatos and Loftur Reimar Gissurarson, Icelandic Spiritualism: Mediumship and Modernity in Iceland, New Brunswick, NJ: Transaction, 1997, ISBN1-56000-273-5, p. 77, note 23.
Þorleifur Hauksson, "Nordic language history and literary history IV: Iceland" in The Nordic Languages: an International Handbook of the History of the North Germanic Languages, ed. Oskar Bandle et al., Volume 1 Berlin: Mouton de Gruyter, 2002, ISBN3110148765, 470-82, pp. 475–76.
Columbia Dictionary of Modern European Literature, ed. Jean Albert Bédé, William Benbow Edgerton, 2nd ed. New York: Columbia, 1980, ISBN0-231-03717-1, p. 454.
Daisy L. Neijmann, A History of Icelandic Literature, Histories of Scandinavian Literature 5, Lincoln: University of Nebraska with the American-Scandinavian Foundation, 2006, ISBN0-8032-3346-9, p. 321.
Swatos, Loftur Gissurarson, pp. 83–154, 219; p. 214: "Einar Kvaran had sittings in his home with [Miss Björg Hafsteen], as with other mediums in this period [the early 1930s]".
Columbia Dictionary of Modern European Literaturep. 380.
