Bas,

We had a similar thread some time ago (in the context of the 37th Russian Jägers 1813), see

http://www.napoleon-series.org/cgi-bin/forum/archive2008_config.pl?page=1;md=read;id=89195

The classic Prussian source is:
Stern-Gwiazdowski, C. L. v. Das Gefecht bei Goldberg-Niederau am 23. August 1813. Berlin: E. S. Mittler, 1864

Best regards, Thomas