Investigation of platinum(IV) ions sorption on SIRs by using photoacoustic and DRS methodsG. Wojcik, S. Pasieczna-Patkowska, Z. Hubicki and J. RyczkowskiEur. Phys. J. Special Topics, 154 (2008) 373-376DOI: https://doi.org/10.1140/epjst/e2008-00578-1