University of Pennsylvania working papers in linguistics 6/3 (2000)
University of Pennsylvania Press
Kim (Ronald): The distribution of the Old Irish infixed pronouns: evidence for the syntactic evolution of Insular Celtic?
In PWPL 6/3 (2000), pp. 167–187.
Developes the hypothesis of an obligatory *esti in clause second position. Cf. W. Cowgill in pp. 40-70 of Grammatische Kategorien (Wiesbaden 1975).