%0 Journal Article %A Melzak, Z. A. %T Problems Connected with Convexity %J Canadian mathematical bulletin %D 1965 %P 565-573 %V 8 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1965-040-x/ %R 10.4153/CMB-1965-040-x %F 10_4153_CMB_1965_040_x