@article{UM_2016_24_4_a3,
     author = {Hrub\'y, Dag},
     title = {Kru\v{z}nice dot\'ykaj{\'\i}c{\'\i} se stran troj\'uheln{\'\i}ku},
     journal = {U\v{c}itel matematiky},
     pages = {231--237},
     year = {2016},
     volume = {24},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2016_24_4_a3/}
}