ISOMER-SHIFT SYSTEMATICS OF 57Co IMPLANTED IN GROUP IV SEMICONDUCTORS G. WEYER, G. GREBE, A. KETTSCHAU, B. I. DEUTCH, A. NYLANDSTED LARSEN et O. HOLCK J. Phys. Colloques, 37 C6 (1976) C6-893-C6-896 DOI: 10.1051/jphyscol:19766189