Japanese has more than one exhaustive focus particles meaning 'only'. Focusing on dake and bakari among them, this paper argues that the iterative operator of bakari requires a plural event even when bakari is suffixed to a noun phrase.
"What Differentiates Two Japanese Exhaustive Focus Particles?,"
University of Pennsylvania Working Papers in Linguistics:
1, Article 14.
Available at: http://repository.upenn.edu/pwpl/vol15/iss1/14