DEM from stereo pairs

Hello out there

Can anybody tell mee whether it is possible to ger[PPP146q[PP[PP genereate a DEM from black and white stereo pairs in grass4.1 ?

Is there an[PP documanentation available?

Thanks

kdr@dina.kvl.dk

PSD. All the noise in this letter is because of long distance internet access to my own machine etc.