Depletion effects in smectic phases of hard-rod-hard-sphere mixtures Y. Martınez-Ratón, G. Cinacchi, E. Velasco and L. Mederos Eur. Phys. J. E, 21 2 (2006) 175-188 Published online: 15 December 2006 DOI: 10.1140/epje/i2006-10058-4