1. PXL University College,Bio-Research,Diepenbeek,Belgium,3590
2. Aristotle University of Thessaloniki,Laboratory of Remote Sensing, Spectroscopy and GIS,Thessaloniki,Greece,54124
3. KU Leuven,Division of Forest, Nature and Landscape,Leuven,Belgium,3001
4. Aristotle University of Thessaloniki,Laboratory of Viticulture,Thessaloniki,Greece,54124