McCone (Kim): Towards a relative chronology of ancient and medieval Celtic sound change.
MSCL, 1. Maynooth: Department of Old Irish, Saint Patrick’s College, 1996. 195 pp.
Focuses on the historical phonology of Early Irish.

Rev. by
Paul Russell, in CMCS 35 (Summer, 1998), pp. 73-76.
María del Henar Velasco López, in Minerva: revista de filología clásica 11 (1997), pp. 185-189.