Prof. Bernhard Hofman – Velenhoff, PhD - Vice-President of the Institute of Navigation and Satellite Geodesy at the Technical University of Graz, Austria. In 1984 he conducted research in Geodesy Research Council, Washington, USA; In 1995 he was a member of the local Parliament in Stiria Region, Austria; In 1999 – Vice – President of the Austrian University of Navigation and honorary member of the Hungarian Society for Photogrammetric and Distance Methods for Earth Studies; 2002. – member of the Austrian Scientific and Research Awarding Committee. He is author of research papers in the field of geodesy, modern technologies and GPS.