@article{10_4153_CMB_1968_058_0,
     author = {Melzak, Z.A.},
     title = {More {Problems} {Connected} with {Convexity}},
     journal = {Canadian mathematical bulletin},
     pages = {489--494},
     year = {1968},
     volume = {11},
     number = {3},
     doi = {10.4153/CMB-1968-058-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-058-0/}
}