The authors wish to acknowledge and thank the Flemish Agency of the European Leonardo Da-Vinci programme for co-financing this project and make this publication available to scholars and professional in Europe.

In addition, we wish to thank:

•    Geert De Lepeleer, Barbara Wauman, Sarah De Seranno, and Guido Kips (University of Applied Sciences St. Lieven);
•    Simon Barnes, Malcolm Donald, Duncan Lees, Lindy Fox (Plowman and Craven);
•    Ion Giurma (Technical University "Gh. Asachi" Iasi);
•    Hans Liebrand (Leica Geosystems);
•    Marianne Couderé (b.v.b.a Couderé);
•    Thomas Weinold  (University of Innsbruck, Austria);
•    Rupert Zischinsky, Peter Staubmann and Werner Maier (Illwerke AG, Austria);
•    Wolfgang Neubauer and Matthias Kucera (VIAS, Vienna);
•    Hans Cornelisse, M&H engineering.

Finally, we want to thank all those individuals and institutions that in one way or another helped with the completion of this publication.