%0 Journal Article %A Bernd Carl %A David E. Edmunds %T Gelfand numbers and metric entropy of convex hulls in Hilbert spaces %J Studia Mathematica %D 2003 %P 391-402 %V 159 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm159-3-4/ %R 10.4064/sm159-3-4 %G en %F 10_4064_sm159_3_4