↑ Ó hÓgáin, Dáithí. Myth Legend and Romance: An Encyclopaedia of the Irish Folk Tradition. Prentice Hall Press, 1991. p. 402
1 2 Hutton, Ronald (1996). Stations of the Sun: A History of the Ritual Year in Britain. Oxford:: Oxford University Press. m/s. 361. ISBN0-19-288045-4.