@article{UM_2019__27_1_a4,
     author = {Ku\v{r}ina, Franti\v{s}ek},
     title = {To jako v\'a\v{z}n\v{e}? [recenze]},
     journal = {U\v{c}itel matematiky},
     pages = {58--62},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {2019},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2019__27_1_a4/}
}