%0 Journal Article %A Ricardo Faro Rivas %T Approximation of convex bodies by polynomial bodies II: Width and radius cases %J Extracta Mathematicae %D 1989 %P 163 %V 4 %N 3 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/EXMATH_1989__4_3_38345/ %G en %F EXMATH_1989__4_3_38345