Rates of Phase Transformations between Mesophases Formed by a Non-Ionic Surfactant in Water: a Time-Resolved X-Ray Diffraction Study Marianne Clerc, Peter Laggner, Anne-Marie Levelut et Gert Rapp J. Phys. II France, 5 7 (1995) 901-917 DOI: 10.1051/jp2:1995219