%0 Journal Article %T Alkali-Ion-Crown Ether in Art and Conservation: The Applied Bioinorganic Chemistry Approach %A Uwe Hilfrich %A Harold Taylor %A Ulrich Weser %J Bioinorganic Chemistry and Applications %D 2003 %I Hindawi Publishing Corporation %R 10.1155/s1565363304000020 %U http://dx.doi.org/10.1155/S1565363304000020