I could have sworn that I had mentioned Lars Nordgren’s book, Greek Interjections Syntax, Semantics and Pragmatics at some point before, but apparently not. I can’t find the post. In any case, his book received a detailed review in the latest issue of the Bryn Mawr Classical Review by Coulter George:

Lars Nordgren, Greek Interjections: Syntax, Semantics and Pragmatics. Trends in linguistics, 273.   Berlin; Boston:  De Gruyter Mouton, 2015. Reviewed by Coulter H. George, University of Virginia

Nordgren’s book is, of course, expensive on Amazon (here), though with all such monographs, patient waiting can often land you a reasonably priced copy–I picked one up about a year ago.

The author has a academia.edu page, as well, but he has not uploaded any papers.