Here 's a link http://milkwood.net/2012/04/03/rendering-our-earthbag-dome-first-coat-bring-on-the-cow-poo/#more-7240
I purchased a DVD on the subject which turned out to be a HOW NOT TO video....many of this guy's sloppy attempts at superadobe fell down! I want my money back and I am hoping his buildings don't kill someone .
However, here is the introductory passage from the really excellent book "Earth Building Tips Tricks and Techniques" by Kaki Hunter and Donald Kiffmeyer, which, in contrast was was SO worth the money ( I got an E- copy for $16 something ). Kaki's Honey Hive House looks as safe as houses, as is their building knowledge:
And more links from the wonderful Milkwood Kirsten here: