MacBain, Alexander. (1911): An Etymological Dictionary of the Gaelic Language, Stirling: Eneas MacKay, 1911.

Quin, E. G. (redaktør) (1983): Dictionary of the Irish Language (DIL), Acadamh Ríoga na hÉireann, Baile Átha Clíath 1983.

Van Hamel, A. G. (1941): Immrama, Mediaeval and Modern Irish Series, Volume X, Published by the Stationery Office, Dublin 1941.

Meyer, Kuno. (1895): The Voyage of Bran Son of Febal, David Nutt in the Strand, London 1895.

DE TOLV VILLENDENE: Norsk Eventyrbibliotek Vol. 7, p. 11ff. Det Norske Samlaget, Oslo.

THE TWELVE WILD DUCKS: Dasent, George Webbe: “Popular tales from the Norse”, Page 52ff. Edmonston and Douglas, Edinburgh 1862.

For the basis of the Sanskrit text see the internet edition of The Texas University at Austin, Lingustics Reasearch Center.