1. HIGH-ORDER HARMONICS IN THE FEW-OPTICAL-CYCLE REGIME. Authors: G. CERULLO, S. STAGIRA, M. NISOLI, V. TOSA, C. DE LISIO, R. BRUZZESE, C. ALTUCCI, S. DE SILVESTRI, O. SVELTO, P. BARBIERO, L. POLETTO, G. TONDELLO, P. VILLORESI.2. COLLISIONAL EFFECTS IN INFRARED MULTIPHOTON DISSOCIATION OF SI2F6. Authors: V. TOSA.