DIFFUSE X-RAY STUDIES OF THE PEIERLS AND THE SPIN PEIERLS TRANSITIONS IN TMTTF-TCNQ AND TMTTF-BROMANIL S. Kagoshima et H. Anzai J. Phys. Colloques, 44 C3 (1983) C3-1289-C3-1294 DOI: 10.1051/jphyscol/1983183