@article{UM_2021_29_2_a4,
     author = {Ku\v{r}ina, Franti\v{s}ek and Vondrov\'a, Na\v{d}a},
     title = {Jak to vlastn\v{e} je? {Nekone\v{c}no}},
     journal = {U\v{c}itel matematiky},
     pages = {111--127},
     year = {2021},
     volume = {29},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2021_29_2_a4/}
}