@article{UM_2011_19_2_a3,
     author = {Hrub\'y, Dag},
     title = {P\v{r}{\'\i}mka v {Gaussov\v{e}} rovin\v{e} (1)},
     journal = {U\v{c}itel matematiky},
     pages = {81--88},
     year = {2011},
     volume = {19},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2011_19_2_a3/}
}