You could try
http://trc.dfrc.nasa.gov/ftintro/
Other end of the speed range, but there's quite a good bibliography in
http://www.bmaa.org/014.pdf
Darrol Stintons' flight testing book I'd strongly recommend buying a copy of, it's a superb reference. The FAA's AC23-8 is also worth having, which should be lurking around the net somewhere to download, although I'd suggest doing it in work time - it's quite large.
I seem to recall that AP3456 helped me through my ETPS board.
G