LASER ANNEALING OF57Co SOURCES IMPLANTED IN Si AND Ge G. Langouche, M. de Potter, J. de Bruyn, M. Van Rossum, R. Coussement and I. Dézsi J. Phys. Colloques, 41 C1 (1980) C1-421-C1-422 DOI: 10.1051/jphyscol:19801163