HIGH RESOLUTION X-RAY AND LIGHT SCATTERING STUDIES OF BILAYER SMECTIC A COMPOUNDS J. D. LITSTER, J. ALS-NIELSEN, R. J. BIRGENEAU, S. S. DANA, D. DAVIDOV, F. GARCIA-GOLDING, M. KAPLAN, C. R. SAFINYA and R. SCHAETZING J. Phys. Colloques, 40 C3 (1979) C3-339-C3-344 DOI: 10.1051/jphyscol:1979366