@article{UM_2000_8_2_a7,
     author = {Durnov\'a, Helena},
     title = {\v{C}ty\v{r}i kostky. {Hlavolam} nejen pro dlouh\'e zimn{\'\i} ve\v{c}ery},
     journal = {U\v{c}itel matematiky},
     pages = {109--115},
     year = {2000},
     volume = {8},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2000_8_2_a7/}
}