Erratum to: Hydrodynamic dispersion in β-lactoglobulin gels measured by PGSE NMRE.O. Fridjonsson, D. Bernin, J.D. Seymour, M. Nydén and S.L. CoddEur. Phys. J. E, 34 3 (2011) 29DOI: https://doi.org/10.1140/epje/i2011-11029-4