A review of vegetation indices - Bannari, A.; Morin, D.; Bonn, F.; Huete, A. R. (Remote Sensing Reviews, 1995)

Development of AI procedures for dealing with the effects of episodal events on crop temporal spectral response - Hay, C. M.; Kuretz, C. A.; Odenweller, J. B.; Scheffner, E. J.; Wood, B. (AgRISTARS SR-B9-00434, Contract NASA 9-14565, 1979)

The IndexDatabase - Henrich, V.; Krauss, G.; Götze, C.; Sandow, C. (2011)