[GRASS5] r.water.fea tutorial

[Cristiano G.]

Hi all,
I have downloaded the tutorial of r.water.fea from http://www.geog.uni-hannover.de/grass/gdp/raster/r_water_fea/ but I can not visualize anything when open it in kghostview (kde ghostview). It seems that there are write nothing in them... only blank pages.
Can someone send me this tutorial or indicate others sites where i can download information about r.water.fea different from html manpage?
Many thanks in advance.
Cristiano G.
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