Critical dynamics of lateral and transversal phase separations in bilayer biomembranes and surfactants M. Ouarch, M. Benhamou, M. Chahid and H. Kaidi Eur. Phys. J. E, 29 3 (2009) 319-327 Published online: 24 June 2009 DOI: 10.1140/epje/i2009-10479-5