Results from the paper

  A. Maier, P. Maierhoefer, P. Marquard:
  Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha_s^2)
  TTP07-32

(http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/webmaster/abs2html?ttp07-32)
 See Readme.ps for details.