Aser,
From the JAA website:
http://www.jaat.eu/publications/jars/JAR%2029.pdf
Although there doesn't seem to be much content...
And this from the EASA website (thanks idlestop):
CS-29
(From here:
http://www.easa.europa.eu/ws_prod/g/rg_certspecs.php#CS-29)
HTH