^ Mhac an Fhailigh, Éamonn (1968) The Irish of Erris, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, section 268, page 62
^ Hamilton, John Noel (1974) A Phonetic Study of the Irish of Tory Island, Co. Donegal (Studies in Irish Language and Literature, Department of Celtic, Q.U.B.; vol. 3), Institute of Irish Studies, The Queen’s University Belfast, page 319