Is there a possibility to create Thiessen-Polygons from Sites Data in GRASS ? *************************************************** Peter Krause, Dipl. Geogr. FZJ Forschungszentrum Jülich GmbH - STE D-52425 Jülich Tel: ++49-2461-616541 Fax: ++49-2461-612540 email: pe.krause at fz-juelich.de ***************************************************