The first mention of corsets seems to have been with Bill and Athena Steen with the
Canelo Project about 20 years ago and is found, at least briefly, in their book, The Straw Bale House.
In reviewing their more recent straw bale projects, they seem to have abandoned the corset about 10 years ago and are using post and beam infill now. That may have been as a result of
experience or it could be the demands of their clients.
In seismically active areas, sandwiching bales in welded wire reinforcement seems to be very popular with engineers and architects. I found this discussion on the use of welded wire reinforcement:
http://www.strawbale.com/metal-in-wall/
and found this blog in it (Ann Torrence may know these folks) that describes post and beam infill with corsets:
http://maryandscotthouseofstraw.blogspot.com/2011/06/straw.html
I hope that gives you
enough to get you started.