"ID" "Type" "Author" "Title" "Publication" "Publisher" "Year" "Date" "Location" "Pages" "Volume" "Issue" "SerialNr" "URL" "DOI" "carter1994" "JOUR" "Carter, Gregory A." "Ratios of leaf reflectances in narrow wavebands as indicators of plant stress" "International Journal of Remote Sensing" "Taylor & Francis" "1994" "" "" "697-703" "15" "3" "0143-1161" "" "10.1080/01431169408954109" "main2011" "JOUR" "Main, Russell; Cho, Moses Azong; Mathieu, Renaud; O’Kennedy, Martha M.; Ramoelo, Abel; Koch, Susan" "An investigation into robust spectral indices for leaf chlorophyll estimation" "ISPRS Journal of Photogrammetry and Remote Sensing" "" "2011" "" "" "751-761" "66" "6" "0924-2716" "http://www.sciencedirect.com/science/article/pii/S092427161100089X" "10.1016/j.isprsjprs.2011.08.001" "idb" "ELEC" "Henrich, V.; Krauss, G.; Götze, C.; Sandow, C." "The IndexDatabase" "" "" "2011" "2011" "Bonn" "" "" "" "" "https://www.indexdatabase.de/" ""