*[Maier, Bernhard (1997); originally published in German in 1994) "Dictionary of Celtic religion and culture", Boydell & Brewer, ISBN 978-0-85115-660-6.
*Maier, Bernhard (1997); originally published in German in 1994) "Dictionary of Celtic religion and culture", Boydell & Brewer, ISBN 978-0-85115-660-6.