@article{CMUC_1981__22_4_a14,
     author = {Jokl, Lud\v{e}k},
     title = {An application of the {Hahn-Banach} theorem in convex analysis},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {799--807},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1981},
     mrnumber = {647027},
     zbl = {0487.46002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1981__22_4_a14/}
}