EXTENDED FINE STRUCTURE OF BRAGG REFLECTIVITY OF COPPER SULPHATE IN THE VICINITY OF COPPER K-EDGE I. ARČON, A. KODRE, D. GLAVIČ and M. HRIBAR J. Phys. Colloques, 48 C9 (1987) C9-1105-C9-1108 DOI: 10.1051/jphyscol:19879200