Counterion distribution in a spherical charged sparse brush F. Muller, P. Fontaine, M. Delsanti, L. Belloni, J. Yang, Y.J. Chen, J.W. Mays, P. Lesieur, M. Tirrell and P. GuenounEur. Phys. J. E, 6 2 (2001) 109-115DOI: https://doi.org/epje/v6/p109(epje01023)