%0 Journal Article %A Melzak, Z.A. %T More Problems Connected with Convexity %J Canadian mathematical bulletin %D 1968 %P 489-494 %V 11 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-058-0/ %R 10.4153/CMB-1968-058-0 %F 10_4153_CMB_1968_058_0