Water activity in lamellar stacks of lipid bilayers: “Hydration forces” revisitedR. Leite Rubim, B. B. Gerbelli, K. Bougis, C. L. Pinto de Oliveira, L. Navailles, F. Nallet and E. Andreoli de OliveiraEur. Phys. J. E, 39 1 (2016) 3DOI: https://doi.org/10.1140/epje/i2016-16003-0