@article{10_4153_CMB_1975_028_x,
     author = {Lin, C.-S.},
     title = {On the {Closure} of the {Convex} {Hull} of a {Set}},
     journal = {Canadian mathematical bulletin},
     pages = {147--148},
     year = {1975},
     volume = {18},
     number = {1},
     doi = {10.4153/CMB-1975-028-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-028-x/}
}