WALL DISSIPATION AND THE FUSION OF 28Si + 28Si and 40Ca + 40Ca D. SPERBER, J. STRYJEWSKI et M. ZIELÍNSKA-PFABÉ J. Phys. Colloques, 48 C2 (1987) C2-275-C2-278 DOI: 10.1051/jphyscol:1987242