The Earlinet contribution to the EarthCare mission. - Apituley, Arnoud; Pappalardo, Gelsomina; Wandinger, Ulla; Mona, L; Mattis, I; Hiebsch, Anja; Amodeo, Aldo; Ansmann, Albert; Linné, Holger; Iarlori, M (Earth-Care workshop, 2009)