You seem to be attempting to access an item that has been removed from the repository.
The item you are trying to access was a duplicate of:
Stegen van der, J.H.G. and Gortzen, J. and Kuipers, J.A.M. and Hogendoorn, J.A. and Versteeg, G.F. (2001) Radial distribution of ions in pores with a surface charge. Journal of Membrane Science, 183 (1). pp. 61-74. ISSN 0376-7388