@article{RMF_2019_94_1_a4,
     author = {Drozd, Zden\v{e}k and Sn\v{e}tinov\'a, Marie and \v{Z}ilav\'a, Kate\v{r}ina},
     title = {V\'a\v{z}en{\'\i} zem\v{e}koule},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {25--31},
     year = {2019},
     volume = {94},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2019_94_1_a4/}
}