Ronan, Patricia (2006) Aspects of Verbal Noun Constructions in Medieval Irish and Welsh With Reference to Similar Constructions in Basque. PhD thesis, National University of Ireland Maynooth.

Stifter, David (2011) Review: Graham R. Isaac, Studies in Celtic Sound Changes and their Chronology. Innsbrucker Beiträge zur Sprachwissenschaft Band 127, Innsbruck: Institut für Sprachen und Literaturen der Universität Innsbruck 2007. 128 pp. ISBN 978-3-85124-711-4. In Press .

Stifter, David (2010) The Invisible Third. The Basque and Celtic Words for "Swallow". Eriu, 60 . pp. 145-157. ISSN 0332-0758

Ni Bhrolchain, Muireann (2009) Who was Gormlaith's mother? A detective story. In: Lost and Found II - Rediscovering Ireland's past. Wordwell Ltd., Ireland, pp. 83-94. ISBN 978-1-905569-26-7