Validation of neural net techniques to estimate canopy biophysical variables from remote sensing data Marie Weiss, Frédéric Baret, Marc Leroy, Olivier Hautecœur, Cédric Bacour, Laurent Prévot and Nadine BruguierAgronomie, 22 6 (2002) 547-553DOI: https://doi.org/10.1051/agro:2002036