Research Papers on Ketu

[Black Cat]

Hi guys, I'm new around here. I didn't know where to post this, so - feel free mods to move it to an appropriate section.

I wanted to know if KN Rao/his students have published any research paper on Ketu - similar to Shivraj Sharma's research paper on Rahu. There are very few books/researches on Rahu and Ketu, and even less on Ketu.

I'd appreciate it if some of you could help me out, with possible reading materials on Ketu. I do realize that there are some authors who've written about Rahu and Ketu, but as KN Rao usually says - we really can't be sure of the credibility of the writings of these authors.

Any help would be appreciated. And I hope we could discuss about Ketu and share some of our understandings about the planet.