^ Ó Cuív, Brian (1968) The Irish of West Muskerry, Co. Cork: A Phonetic Study, Dublin Institute for Advanced Studies, →ISBN, section 59, page 15; reprinted 1988
^ de Bhaldraithe, Tomás (1975) The Irish of Cois Fhairrge, Co. Galway: A Phonetic Study, revised edition, Dublin Institute for Advanced Studies, § 274–275, page 53
^ de Bhaldraithe, Tomás (1977) Gaeilge Chois Fhairrge: An Deilbhíocht (in Irish), 2nd edition, Institiúid Ard-Léinn Bhaile Átha Cliath [Dublin Institute for Advanced Studies], page 393
^ de Búrca, Seán (1958) The Irish of Tourmakeady, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, →ISBN, section 484, page 132
^ Mhac an Fhailigh, Éamonn (1968) The Irish of Erris, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, section 183, page 43
^ Wagner, Heinrich (1959) Gaeilge Theilinn: Foghraidheacht, Gramadach, Téacsanna (in Irish), Institiúid Ard-Léinn Bhaile Átha Cliath [Dublin Institute for Advanced Studies], section 456, page 170; reprinted 1979