@article{PMFA_1984__29_6_a0,
     author = {Vesel\'y, Ji\v{r}{\'\i} and Netuka, Ivan},
     title = {Eduard {Helly,} konvexita a funkcion\'aln{\'\i} anal\'yza},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {301--312},
     publisher = {mathdoc},
     volume = {29},
     number = {6},
     year = {1984},
     mrnumber = {0780120},
     zbl = {0591.01022},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1984__29_6_a0/}
}