IMAGE ANALYSIS OF FREEZE-FRACTURED LIPID-WATER CUBIC PHASES OF SPACE GROUP Ia3d H. DELACROIX, P. MARIANI et T. GULIK-KRZYWICKI J. Phys. Colloques, 51 C7 (1990) C7-119-C7-129 DOI: 10.1051/jphyscol:1990712