↑Lyle, E. B. (1970). The Teind to Hell in Tam Lin. Folklore, 81(3), 177-181.
↑Ashliman, D. L., "Changelings", 1997. Frenken shows historical pictures of the topic (newborn and the devil): Frenken, Ralph, 2011, Gefesselte Kinder: Geschichte und Psychologie des Wickelns. Wissenschaftlicher Verlag Bachmann. Badenweiler. pp. 146, 218 f, 266, 293.
↑Katharine Briggs, An Encyclopedia of Fairies, Hobgoblins, Brownies, Boogies, and Other Supernatural Creatures "Changelings" (Pantheon Books, 1976) p. 71.