1. a Swiss Federal Research Institute WSL , Cascine di Barico , Zürcherstrasse 111, CH-8903, Birmensdorf
2. b Sarmap SA. , Cascine di Barico , CH-6989, Purasca
3. c Remote Sensing Laboratories, Department of Geography , University of Zurich , Winterthurerstrasse 190, CH-8057, Zurich
4. d Scherrer Ingenieurbüro AG , CH-9650, Nesslau