A study of the Phase Diagram of the Micellar Binary Solution Models I: Mean Field Approach A. Benyoussef, L. Laanait, N. Masaif et N. Moussa J. Phys. I France, 6 8 (1996) 1043-1058 Accepté le : 19 mars 1996 DOI: 10.1051/jp1:1996115