PANEL IIShort summary J.R. Peterson, D. Damien, J. Fuger, G. Lander, J.C. Spirlet, O. Vogt and A. Wojakowski J. Phys. Colloques, 40 C4 (1979) C4-152-C4-153 DOI: 10.1051/jphyscol:1979450
