On Line Validation Exercise (OLIVE): A Web Based Service for the Validation of Medium Resolution Land Products. Application to FAPAR Products oleh Marie Weiss, Frédéric Baret, Tom Block, Benjamin Koetz, Alessandro Burini, Bettina Scholze, Patrice Lecharpentier, Carsten Brockmann, Richard Fernandes, Stephen Plummer, Ranga Myneni, Nadine Gobron, Joanne Nightingale, Gabriela Schaepman-Strub, Fernando Camacho, Arturo Sanchez-Azofeifa