Evaluation of kernel-driven BRDF models for the normalization of Alpilles/ReSeDA POLDER data Marie Weiss, Frédéric Jacob, Frédéric Baret, Agnès Pragnère, Claude Bruchou, Marc Leroy, Olivier Hautecœur, Laurent Prévot and Nadine Bruguier Agronomie, 22 6 (2002) 531-536 DOI: 10.1051/agro:2002037