THE TRANSITION STATE AS AN INTERPRETATION OF DIFFUSE INTENSITY CONTOURS IN SUBSTITUTIONALLY DISORDERED SYSTEMS R. DE RIDDER, G. VAN TENDELOO, D. VAN DYCK and S. AMELINCKX J. Phys. Colloques, 38 C7 (1977) C7-178-C7-186 DOI: 10.1051/jphyscol:1977734