Schils, R; Olesen, JE; Kersebaum, KC; Rijk, B; Oberforster, M; Kalyada, V; Khitrykau, M; Gobin, A; Kirchev, H; Manolova, V; Manolov, I; Trnka, M; Hlavinka, P; Palosuo, T; Peltonen-Sainio, P; Jauhiainen, L; Lorgeou, J; Marrou, H; Danalatos, N; Archontoulis