%0 Journal Article %A S. J. Dilworth %A Ralph Howard %A James W. Roberts %T On the size of approximately convex sets in normed spaces %J Studia Mathematica %D 2000 %P 213-241 %V 140 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-140-3-213-241/ %R 10.4064/sm-140-3-213-241 %G en %F 10_4064_sm_140_3_213_241