Desertification - a land degradation support service. - Francesco Holecz; Claude Heimo; José Moreno 001; Jean-Jacques Goussard; Diego Fernandez; José Luis Rubio; Erxue Chen; Erdenetuya Magsar; Medou Lo; Alessandro Chemini; Franz Stoessel; Ake Rosenqvist (IGARSS, 2003)