%0 Journal Article %A Lin, C.-S. %T On the Closure of the Convex Hull of a Set %J Canadian mathematical bulletin %D 1975 %P 147-148 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-028-x/ %R 10.4153/CMB-1975-028-x %F 10_4153_CMB_1975_028_x