"ID" "Type" "Author" "Title" "Publication" "Publisher" "Year" "Date" "Location" "Pages" "Volume" "Issue" "SerialNr" "URL" "DOI" "lichtenthaler1996" "ABST" "Lichtenthaler, Hartmut K." "Vegetation Stress: an Introduction to the Stress Concept in Plants" "Journal of Plant Physiology" "" "1996" "" "" "4-14" "148" "1–2" "0176-1617" "http://www.sciencedirect.com/science/article/pii/S0176161796802872" "10.1016/s0176-1617(96)80287-2" "zarco-tejada2001" "JOUR" "Zarco-Tejada, P. J.; Miller, J. R.; Noland, T. L.; Mohammed, G. H.; Sampson, P. H. " "Scaling-up and model inversion methods with narrow-band optical indices for chlorophyll content estimation in closed forest canopies with hyperspectral data" "IEEE Transactions on Geoscience and Remote Sensing" "" "2001" "" "" "1491−1507" "39" "" "" "" "" "idb" "ELEC" "Henrich, V.; Krauss, G.; Götze, C.; Sandow, C." "The IndexDatabase" "" "" "2011" "2011" "Bonn" "" "" "" "" "https://www.indexdatabase.de/" ""