@article{UM_2008__16_1_a2,
     author = {Haviger, Ji\v{r}{\'\i}},
     title = {Racion\'aln{\'\i} \v{c}{\'\i}sla z pohledu \v{c}{\'\i}seln\'ych soustav},
     journal = {U\v{c}itel matematiky},
     pages = {18--31},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2008},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2008__16_1_a2/}
}