No prob at all gry
fact is ..if it hadn't been for the pajamas larking about jami ...
I wouldn't have ever bothered to post ludicrous stuff, and then get fixated on an actual answer to your question, or even related material....for that matter...
But now that my mind is fixated on it...it is hard to let go of a puzzle or riddle.

Perhaps google instead of ddg , that is what I used to find the paper I mentioned,
Only did a cursory search, nothing in depth.
there are also very serious search engines that scour as well, they may find more.
And failing that, alter the phrasing words of your search, you may find that doing so multiple times will yield vastly different results.
I have had extreme results when changing the phrasing of my query 5, 6, 10, 15 different ways.
How you phrase your query will definitely yield varied results, some worse, some better,
I suggest you try that until you hit on the golden combination of words in the right order that nets you the most definitive results.