@article{UM_1997_5_1_a13,
     author = {Henry, B.},
     title = {Bl\'aboliv\'a metafyzika kruhu aneb jak u\v{s}et\v{r}it 127,- {K\v{c}}},
     journal = {U\v{c}itel matematiky},
     pages = {56--57},
     year = {1997},
     volume = {5},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1997_5_1_a13/}
}