@article{10_4153_CJM_1966_088_7,
     author = {McKinney, Richard L.},
     title = {On {Unions} of {Two} {Convex} {Sets}},
     journal = {Canadian journal of mathematics},
     pages = {883--886},
     year = {1966},
     volume = {18},
     number = {1},
     doi = {10.4153/CJM-1966-088-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-088-7/}
}