@article{UM_2003_11_4_a1,
     author = {Leischner, Pavel},
     title = {\v{C}ty\v{r}st\v{e}ny s troj\'uheln{\'\i}kovou s{\'\i}t{\'\i} (2)},
     journal = {U\v{c}itel matematiky},
     pages = {204--217},
     year = {2003},
     volume = {11},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2003_11_4_a1/}
}