GI2010 symposium-hoffmann (program+intro+gi2010+eu-x-gdi)
GI2013 ppt hoffmann_address_intro
GI2012 hoffmann-oddp
GI2012 hoffmann-address intro
GI2012 hoffmann-ngis
Hoffmann ppt gi2011_x-border-sdi-analysis+challenges_final
GI2014 ppt hoffmann_address_intro
