I found this article from the Bibliography in Claudio’s UT book, 5th edition.
Why I hate Vallotti (or is it Young?) 1.1 | Dr. Ross W. Duffin (case.edu)
[It’s not as anti as the title suggests!]
Dear Andrew
Well, you can also read Duffin’s entire book from 2007: How Equal Temperament Ruined Harmony (and Why You Should Care).
As I mention on my page about Sixth-comma meantone, it seems that was the only temperament for those which passed through Case Western University during his tenure there!
Regards
Carey
Ah, the same chap. Interesting.