Concentration dependence of the low-shear viscosity of polyelectrolyte micro-networks: From hard spheres to soft microgelsR. Borrega, M. Cloitre, I. Betremieux, B. Ernst and L. LeiblerEurophys. Lett., 47 6 (1999) 729-735DOI: https://doi.org/10.1209/epl/i1999-00451-1