HARD PHOTON PRODUCTION IN NUCLEUS-NUCLEUS COLLISIONS AT 30 MeV/u AND 44 MeV/u R. BERTHOLET, S. BJØRNHOLM, M. KWATO NJOCK, M. MAUREL, E. MONNAND, H. NIFENECKER, P. PERRIN, J.A. PINSTON, F. SCHUSSLER, D. BARNEOUD et al. (2 de plus) J. Phys. Colloques, 47 C4 (1986) C4-201-C4-204 DOI: 10.1051/jphyscol:1986424