Tiamat/Takhis research

Anyone have anything on Tiamat or Takhisis for D&D?

I need to go beyond the normal web-crawl/wikipedial-trawl and get some deep, hard research.

Something beyond this post I made in the summer.
http://timbrannan.blogspot.com/2012/06/tiamat-on-my-mind.html

Thanks all!