Lord Whitworth and the Conspiracy Against Tsar Paul

Ragsdale is 1981, and the relevant chapter is based on Kenney anyway, so no further forward

McGrew was 1992, but still probably too early to take full advantage of glasnost.

So other than the ravings of a Putin apologist on another thread, all we have is a re-heat from 30-40 years ago? My Russian is more than a little rusty, but does anyone know of more modern, serious post Soviet era research?

As conspriracy theories go, it's not exactly been attracting a lot of attention has it? As it didn't really make it into the mainstream narrative I can only conclude it wasn't very convincing then. I see little to change that opinion now.