Alie Anne Yorgason has a dissertation analyzing Nikolai Kapustin's 24 Preludes and Fugues, Op. 82 and a short thought on how the prelude and fugue was more commonplace in the 20th century than you might have heard

https://www.ideals.illinois.edu/handle/2142/104065
Title: A study of Nikolai Kapustin's 24 Preludes and Fugues, Op. 82
Author(s): Yorgason, Alie Anne

I'm not aware that it is a published work or anything like that but as I have linked to dissertations on Kapustin's work in the past this one is one I very much want to read should it ever get published!  I was thinking of blogging through Kapustin's cycle over the years but if someone has already done a dissertation on it, well, why would I blog about Kapustin's preludes and fugues now if I can point people to Yorgason's work?  

If you want to hear Kapustin's 24 Preludes and Fugues as played by Kapustin himself here's where you want to go.

https://www.youtube.com/watch?v=eYFEFXbNeQQ