@proceedings{ gitelson2001, author = {Gitelson, Anatoly A. and Merzlyak, Mark N. and Zur, Y. and Stark, R. and Gritz, U.}, title = {Non-destructive and remote sensing techniques for estimation of vegetation status}, journal = {Third European Conference on Precision Agriculture}, publisher = {}, address = {Montpellier, France}, pages = {301-306}, volume = {1}, number = {}, year = {2001} } @misc{ idb, author = {Henrich, V. and Krauss, G. and Götze, C. and Sandow, C.}, title = {The IndexDatabase}, publisher = {}, address = {Bonn}, pages = {}, volume = {}, number = {}, year = {2011} }